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Hints cleanup

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1 parent 319325c commit 12c14db52f66f420bd0177fd1a73e18bb613a2d1 @spicyj spicyj committed May 31, 2011
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135 exercises/age_word_problems.html
@@ -27,17 +27,12 @@
<div class="solution"><var>(C * (B + A) - B) / (C - 1)</var></div>
<div class="hints">
- <p class="hint1">Let <var>person(1)</var>'s current age be <code><var>personVar(1)</var></code>.</p>
-
- <p class="hint2">That means that <var>B</var> years ago, <var>person(1)</var> was <code><var>personVar(1)</var> - <var>B</var></code> years old.</p>
-
- <p class="hint3"><var>person(2)</var> is <code><var>personVar(1)</var> - <var>A</var></code> years old right now, so <var>B</var> years ago, <var>he(2)</var> was <code>(<var>personVar(1)</var> - <var>A</var>) - <var>B</var> = <var>personVar(1)</var> - <var>A + B</var></code> years old.</p>
-
- <p class="hint4"><var>person(1)</var> was <var>C</var> times as old as <var>person(2)</var>, so that means <code><var>personVar(1)</var> - <var>B</var> = <var>C</var> (<var>personVar(1)</var> - <var>A + B</var>)</code>.</p>
-
- <p class="hint5">Expand: <code><var>personVar(1)</var> - <var>B</var> = <var>C</var> <var>personVar(1)</var> - <var>C * (A + B)</var></code>.</p>
-
- <p class="hint6">Solve for <code><var>personVar(1)</var></code> to get <code><var>C - 1</var> <var>personVar(1)</var> = <var>C * (A + B) - B</var></code>; <code><var>personVar(1)</var> = <var>(C * (B + A) - B) / (C - 1)</var></code>.</p>
+ <p>Let <var>person(1)</var>'s current age be <code><var>personVar(1)</var></code>.</p>
+ <p>That means that <var>B</var> years ago, <var>person(1)</var> was <code><var>personVar(1)</var> - <var>B</var></code> years old.</p>
+ <p><var>person(2)</var> is <code><var>personVar(1)</var> - <var>A</var></code> years old right now, so <var>B</var> years ago, <var>he(2)</var> was <code>(<var>personVar(1)</var> - <var>A</var>) - <var>B</var> = <var>personVar(1)</var> - <var>A + B</var></code> years old.</p>
+ <p><var>person(1)</var> was <var>C</var> times as old as <var>person(2)</var>, so that means <code><var>personVar(1)</var> - <var>B</var> = <var>C</var> (<var>personVar(1)</var> - <var>A + B</var>)</code>.</p>
+ <p>Expand: <code><var>personVar(1)</var> - <var>B</var> = <var>C</var> <var>personVar(1)</var> - <var>C * (A + B)</var></code>.</p>
+ <p>Solve for <code><var>personVar(1)</var></code> to get <code><var>C - 1</var> <var>personVar(1)</var> = <var>C * (A + B) - B</var></code>; <code><var>personVar(1)</var> = <var>(C * (B + A) - B) / (C - 1)</var></code>.</p>
</div>
</div>
@@ -52,17 +47,12 @@
<div class="solution"><var>(A - B + C * B) / (C - 1)</var></div>
<div class="hints">
- <p class="hint1">Let <var>person(2)</var>'s current age be <code><var>personVar(2)</var></code>.</p>
-
- <p class="hint2">That means that <var>person(1)</var> is currently <code><var>personVar(2)</var> + <var>A</var></code> years old and <var>B</var> years ago, <var>person(1)</var> was <code>(<var>personVar(2)</var> + <var>A</var>) - <var>B</var> = <var>personVar(2)</var> + <var>A - B</var></code> years old.</p>
-
- <p class="hint3"><var>B</var> years ago, <var>person(2)</var> was <code><var>personVar(2)</var> - <var>B</var></code> years old.</p>
-
- <p class="hint4"><var>person(1)</var> was <var>C</var> times as old as <var>person(2)</var>, so that means <code><var>personVar(2)</var> + <var>A - B</var> = <var>C</var> (<var>personVar(2)</var> - <var>B</var>)</code>.</p>
-
- <p class="hint5">Expand: <code><var>personVar(2)</var> + <var>A - B</var> = <var>C</var> <var>personVar(2)</var> - <var>C * B</var></code>.</p>
-
- <p class="hint6">Solve for <code><var>personVar(2)</var></code> to get <code><var>C - 1</var> <var>personVar(2)</var> = <var>A - B + C * B</var></code>; <code><var>personVar(2)</var> = <var>(A - B + C * B) / (C - 1)</var></code>.</p>
+ <p>Let <var>person(2)</var>'s current age be <code><var>personVar(2)</var></code>.</p>
+ <p>That means that <var>person(1)</var> is currently <code><var>personVar(2)</var> + <var>A</var></code> years old and <var>B</var> years ago, <var>person(1)</var> was <code>(<var>personVar(2)</var> + <var>A</var>) - <var>B</var> = <var>personVar(2)</var> + <var>A - B</var></code> years old.</p>
+ <p><var>B</var> years ago, <var>person(2)</var> was <code><var>personVar(2)</var> - <var>B</var></code> years old.</p>
+ <p><var>person(1)</var> was <var>C</var> times as old as <var>person(2)</var>, so that means <code><var>personVar(2)</var> + <var>A - B</var> = <var>C</var> (<var>personVar(2)</var> - <var>B</var>)</code>.</p>
+ <p>Expand: <code><var>personVar(2)</var> + <var>A - B</var> = <var>C</var> <var>personVar(2)</var> - <var>C * B</var></code>.</p>
+ <p>Solve for <code><var>personVar(2)</var></code> to get <code><var>C - 1</var> <var>personVar(2)</var> = <var>A - B + C * B</var></code>; <code><var>personVar(2)</var> = <var>(A - B + C * B) / (C - 1)</var></code>.</p>
</div>
</div>
@@ -82,17 +72,12 @@
<div class="solution"><var>A * C / (C - 1)</var></div>
<div class="hints">
- <p class="hint1">Let <var>person(1)</var>'s age be <code><var>personVar(1)</var></code>.</p>
-
- <p class="hint2">We know <var>person(2)</var> is <code>1/<var>C</var></code> as old as <var>person(1)</var>, so <var>person(2)</var>'s age can be written as <code><var>personVar(1)</var> / <var>C</var></code>.</p>
-
- <p class="hint3"><var>His(2)</var> age can also be written as <code><var>personVar(1)</var> - <var>A</var></code>.</p>
-
- <p class="hint4">Set the two expressions for <var>person(2)</var>'s age equal to each other: <code><var>personVar(1)</var> / <var>C</var> = <var>personVar(1)</var> - <var>A</var></code>.</p>
-
- <p class="hint5">Multiply both sides by <code><var>C</var></code> to get <code><var>personVar(1)</var> = <var>C</var> <var>personVar(1)</var> - <var>A * C</var></code>.</p>
-
- <p class="hint6">Solve for <code><var>personVar(1)</var></code> to get <code><var>C - 1</var> <var>personVar(1)</var> = <var>A * C</var></code>; <code><var>personVar(1)</var> = <var>A * C / (C - 1)</var></code>.</p>
+ <p>Let <var>person(1)</var>'s age be <code><var>personVar(1)</var></code>.</p>
+ <p>We know <var>person(2)</var> is <code>1/<var>C</var></code> as old as <var>person(1)</var>, so <var>person(2)</var>'s age can be written as <code><var>personVar(1)</var> / <var>C</var></code>.</p>
+ <p><var>His(2)</var> age can also be written as <code><var>personVar(1)</var> - <var>A</var></code>.</p>
+ <p>Set the two expressions for <var>person(2)</var>'s age equal to each other: <code><var>personVar(1)</var> / <var>C</var> = <var>personVar(1)</var> - <var>A</var></code>.</p>
+ <p>Multiply both sides by <code><var>C</var></code> to get <code><var>personVar(1)</var> = <var>C</var> <var>personVar(1)</var> - <var>A * C</var></code>.</p>
+ <p>Solve for <code><var>personVar(1)</var></code> to get <code><var>C - 1</var> <var>personVar(1)</var> = <var>A * C</var></code>; <code><var>personVar(1)</var> = <var>A * C / (C - 1)</var></code>.</p>
</div>
</div>
@@ -107,15 +92,11 @@
<div class="solution"><var>A / (C - 1)</var></div>
<div class="hints">
- <p class="hint1">Let <var>person(2)</var>'s age be <code><var>personVar(2)</var></code>.</p>
-
- <p class="hint2">We know <var>person(1)</var> is <var>C</var> times as old as <var>person(2)</var>, so <var>person(1)</var>'s age can be written as <code><var>C</var> <var>personVar(2)</var></code>.</p>
-
- <p class="hint3"><var>His(1)</var> age can also be written as <code><var>personVar(2)</var> + <var>A</var></code>.</p>
-
- <p class="hint4">Set the two expressions for <var>person(1)</var>'s age equal to each other: <code><var>C</var> <var>personVar(2)</var> = <var>personVar(2)</var> + <var>A</var></code>.</p>
-
- <p class="hint5">Solve for <code><var>personVar(2)</var></code> to get <code><var>C - 1</var> <var>personVar(2)</var> = <var>A</var></code>; <code><var>personVar(2)</var> = <var>A / (C - 1)</var></code>.</p>
+ <p>Let <var>person(2)</var>'s age be <code><var>personVar(2)</var></code>.</p>
+ <p>We know <var>person(1)</var> is <var>C</var> times as old as <var>person(2)</var>, so <var>person(1)</var>'s age can be written as <code><var>C</var> <var>personVar(2)</var></code>.</p>
+ <p><var>His(1)</var> age can also be written as <code><var>personVar(2)</var> + <var>A</var></code>.</p>
+ <p>Set the two expressions for <var>person(1)</var>'s age equal to each other: <code><var>C</var> <var>personVar(2)</var> = <var>personVar(2)</var> + <var>A</var></code>.</p>
+ <p>Solve for <code><var>personVar(2)</var></code> to get <code><var>C - 1</var> <var>personVar(2)</var> = <var>A</var></code>; <code><var>personVar(2)</var> = <var>A / (C - 1)</var></code>.</p>
</div>
</div>
@@ -134,17 +115,7 @@
<div class="solution"><var>A * B * (C - 1) / (C - A)</var></div>
<div class="hints">
- <p class="hint1">Let <var>person(1)</var>'s age be <code><var>personVar(1)</var></code>.</p>
-
- <p class="hint2">We know <var>person(2)</var> is <code>1/<var>A</var></code> as old as <var>person(1)</var>, so <var>person(2)</var>'s age can be written as <code><var>personVar(1)</var> / <var>A</var></code>.</p>
-
- <p class="hint3"><var>B</var> years ago, <var>person(1)</var> was <code><var>personVar(1)</var> - <var>B</var></code> years old and <var>person(2)</var> was <code><var>personVar(1)</var> / <var>A</var> - <var>B</var></code> years old.</p>
-
- <p class="hint4">At that time, <var>person(1)</var> was <var>C</var> times as old as <var>person(2)</var>, so we can write <code><var>personVar(1)</var> - <var>B</var> = <var>C</var> (<var>personVar(1)</var> / <var>A</var> - <var>B</var>)</code>.</p>
-
- <p class="hint5">Expand: <code><var>personVar(1)</var> - <var>B</var> = <var>fraction(C, A)</var> <var>personVar(1)</var> - <var>C * B</var></code>.</p>
-
- <p class="hint6">Solve for <code><var>personVar(1)</var></code> to get <code><var>fraction(C - A, A)</var> <var>personVar(1)</var> = <var>B * (C - 1)</var></code>; <code><var>personVar(1)</var> = <var>fraction(A, C - A)</var> \cdot <var>B * (C - 1)</var> = <var>A * B * (C - 1) / (C - A)</var></code>.</p>
+ <p>Solve for <code><var>personVar(1)</var></code> to get <code><var>fraction(C - A, A)</var> <var>personVar(1)</var> = <var>B * (C - 1)</var></code>; <code><var>personVar(1)</var> = <var>fraction(A, C - A)</var> \cdot <var>B * (C - 1)</var> = <var>A * B * (C - 1) / (C - A)</var></code>.</p>
</div>
</div>
@@ -157,17 +128,12 @@
<div class="solution"><var>B * (C - 1) / (C - A)</var></div>
<div class="hints">
- <p class="hint1">Let <var>person(2)</var>'s age be <code><var>personVar(2)</var></code>.</p>
-
- <p class="hint2">We know <var>person(1)</var> is <var>A</var> times as old as <var>person(2)</var>, so <var>person(1)</var>'s age can be written as <code><var>A</var> <var>personVar(2)</var></code>.</p>
-
- <p class="hint3"><var>B</var> years ago, <var>person(1)</var> was <code><var>A</var> <var>personVar(2)</var> - <var>B</var></code> years old and <var>person(2)</var> was <code><var>personVar(2)</var> - <var>B</var></code> years old.</p>
-
- <p class="hint4">At that time, <var>person(1)</var> was <var>C</var> times as old as <var>person(2)</var>, so we can write <code><var>A</var> <var>personVar(2)</var> - <var>B</var> = <var>C</var> (<var>personVar(2)</var> - <var>B</var>)</code>.</p>
-
- <p class="hint5">Expand: <code><var>A</var> <var>personVar(2)</var> - <var>B</var> = <var>C</var> <var>personVar(2)</var> - <var>B * C</var></code>.</p>
-
- <p class="hint6">Solve for <code><var>personVar(1)</var></code> to get <code><var>C - A</var> <var>personVar(1)</var> = <var>B * (C - 1)</var></code>; <code><var>personVar(1)</var> = <var>B * (C - 1) / (C - A)</var></code>.</p>
+ <p>Let <var>person(2)</var>'s age be <code><var>personVar(2)</var></code>.</p>
+ <p>We know <var>person(1)</var> is <var>A</var> times as old as <var>person(2)</var>, so <var>person(1)</var>'s age can be written as <code><var>A</var> <var>personVar(2)</var></code>.</p>
+ <p><var>B</var> years ago, <var>person(1)</var> was <code><var>A</var> <var>personVar(2)</var> - <var>B</var></code> years old and <var>person(2)</var> was <code><var>personVar(2)</var> - <var>B</var></code> years old.</p>
+ <p>At that time, <var>person(1)</var> was <var>C</var> times as old as <var>person(2)</var>, so we can write <code><var>A</var> <var>personVar(2)</var> - <var>B</var> = <var>C</var> (<var>personVar(2)</var> - <var>B</var>)</code>.</p>
+ <p>Expand: <code><var>A</var> <var>personVar(2)</var> - <var>B</var> = <var>C</var> <var>personVar(2)</var> - <var>B * C</var></code>.</p>
+ <p>Solve for <code><var>personVar(1)</var></code> to get <code><var>C - A</var> <var>personVar(1)</var> = <var>B * (C - 1)</var></code>; <code><var>personVar(1)</var> = <var>B * (C - 1) / (C - A)</var></code>.</p>
</div>
</div>
@@ -185,17 +151,11 @@
<div class="solution"><var>B / (A - 1)</var></div>
<div class="hints">
- <p class="hint1">Let <var>person(1)</var>'s age be <code><var>personVar(1)</var></code>.</p>
-
- <p class="hint2">In <var>B</var> years, <var>he(1)</var> will be <code><var>personVar(1)</var> + <var>B</var></code> years old.</p>
-
- <p class="hint3">At that time, <var>he(1)</var> will also be <code><var>A</var> <var>personVar(1)</var></code> years old.</p>
-
- <p class="hint4">We write <code><var>personVar(1)</var> + <var>B</var> = <var>A</var> <var>personVar(1)</var></code>.</p>
-
- <p class="hint5">Solve for <code><var>personVar(1)</var></code> to get <code><var>A - 1</var> <var>personVar(1)</var> = <var>B</var></code>; <code><var>personVar(1)</var> = <var>B / (A - 1)</var></code>.</p>
-
- <p class="hint6"></p>
+ <p>Let <var>person(1)</var>'s age be <code><var>personVar(1)</var></code>.</p>
+ <p>In <var>B</var> years, <var>he(1)</var> will be <code><var>personVar(1)</var> + <var>B</var></code> years old.</p>
+ <p>At that time, <var>he(1)</var> will also be <code><var>A</var> <var>personVar(1)</var></code> years old.</p>
+ <p>We write <code><var>personVar(1)</var> + <var>B</var> = <var>A</var> <var>personVar(1)</var></code>.</p>
+ <p>Solve for <code><var>personVar(1)</var></code> to get <code><var>A - 1</var> <var>personVar(1)</var> = <var>B</var></code>; <code><var>personVar(1)</var> = <var>B / (A - 1)</var></code>.</p>
</div>
</div>
@@ -214,28 +174,15 @@
<div class="solution"><var>(A - B * C) / (C - 1)</var></div>
<div class="hints">
- <p class="hint1">Let <code>y</code> be the number of years that it will take.</p>
-
- <p class="hint2">In <code>y</code> years, <var>person(1)</var> will be <code><var>A</var> + y</code> years old and <var>person(2)</var> will be <code><var>B</var> + y</code> years old.</p>
-
- <p class="hint3">At that time, <var>person(1)</var> will be <var>C</var> times as old as <var>person(2)</var>.</p>
-
- <p class="hint4">We write <code><var>A</var> + y = <var>C</var> (<var>B</var> + y)</code>.</p>
-
- <p class="hint5">Expand to get <code><var>A</var> + y = <var>C * B</var> + <var>C</var> y</code>.</p>
-
- <p class="hint6">Solve for <code>y</code> to get <code><var>C - 1</var> y = <var>A - C * B</var></code>; <code>y = <var>(A - C * B) / (C - 1)</var></code>.</p>
+ <p>Let <code>y</code> be the number of years that it will take.</p>
+ <p>In <code>y</code> years, <var>person(1)</var> will be <code><var>A</var> + y</code> years old and <var>person(2)</var> will be <code><var>B</var> + y</code> years old.</p>
+ <p>At that time, <var>person(1)</var> will be <var>C</var> times as old as <var>person(2)</var>.</p>
+ <p>We write <code><var>A</var> + y = <var>C</var> (<var>B</var> + y)</code>.</p>
+ <p>Expand to get <code><var>A</var> + y = <var>C * B</var> + <var>C</var> y</code>.</p>
+ <p>Solve for <code>y</code> to get <code><var>C - 1</var> y = <var>A - C * B</var></code>; <code>y = <var>(A - C * B) / (C - 1)</var></code>.</p>
</div>
</div>
</div>
- <div class="hints">
- <p class="hint1"></p>
- <p class="hint2"></p>
- <p class="hint3"></p>
- <p class="hint4"></p>
- <p class="hint5"></p>
- <p class="hint6"></p>
- </div>
</div>
</body>
</html>
View
25 exercises/average_word_problems.html
@@ -33,9 +33,9 @@
<div class="solution"><var>SUM / LENGTH</var></div>
<div class="hints">
- <p class="hint1">The average is the sum of <var>his(1)</var> scores divided by the number of scores.</p>
- <p class="hint2">There are <var>LENGTH</var> scores and their sum is <code><var>SCORES.join(" + ")</var> = <var>SUM</var></code>.</p>
- <p class="hint3"><var>His(1)</var> average score is <code><var>SUM</var> \div <var>LENGTH</var> = <var>SUM / LENGTH</var></code>.</p>
+ <p>The average is the sum of <var>his(1)</var> scores divided by the number of scores.</p>
+ <p>There are <var>LENGTH</var> scores and their sum is <code><var>SCORES.join(" + ")</var> = <var>SUM</var></code>.</p>
+ <p><var>His(1)</var> average score is <code><var>SUM</var> \div <var>LENGTH</var> = <var>SUM / LENGTH</var></code>.</p>
</div>
</div>
@@ -54,10 +54,10 @@
<div class="solution"><var>NEW_AVG + COUNT * (NEW_AVG - OLD_AVG)</var></div>
<div class="hints">
- <p class="hint1">Let <var>his(1)</var> score on the next <var>exam(1)</var> be <code>x</code>.</p>
- <p class="hint2">The sum of all of <var>his(1)</var> scores is then <code><var>COUNT</var> \cdot <var>OLD_AVG</var> + x</code>.</p>
- <p class="hint3">The same sum must also be equal to <code><var>COUNT + 1</var> \cdot <var>NEW_AVG</var></code>.</p>
- <p class="hint4">Solve: <code>x = <var>COUNT + 1</var> \cdot <var>NEW_AVG</var> - <var>COUNT</var> \cdot <var>OLD_AVG</var> = <var>(COUNT + 1) * NEW_AVG - COUNT * OLD_AVG</var></code>.</p>
+ <p>Let <var>his(1)</var> score on the next <var>exam(1)</var> be <code>x</code>.</p>
+ <p>The sum of all of <var>his(1)</var> scores is then <code><var>COUNT</var> \cdot <var>OLD_AVG</var> + x</code>.</p>
+ <p>The same sum must also be equal to <code><var>COUNT + 1</var> \cdot <var>NEW_AVG</var></code>.</p>
+ <p>Solve: <code>x = <var>COUNT + 1</var> \cdot <var>NEW_AVG</var> - <var>COUNT</var> \cdot <var>OLD_AVG</var> = <var>(COUNT + 1) * NEW_AVG - COUNT * OLD_AVG</var></code>.</p>
</div>
</div>
@@ -77,18 +77,11 @@
<div class="solution"><var>NEW_AVG</var></div>
<div class="hints">
- <p class="hint1">If <var>he(1)</var> gets 100 on the remaining <var>plural(exam(1))</var>, the sum of <var>his(1)</var> scores will be <code><var>COUNT</var> \cdot <var>OLD_AVG</var> + <var>REMAINING</var> \cdot <var>100</var> = <var>COUNT * OLD_AVG + 100 * REMAINING</var></code>.</p>
- <p class="hint2"><var>His(1)</var> overall average will then be <code><var>COUNT * OLD_AVG + 100 * REMAINING</var> \div <var>COUNT + REMAINING</var> = <var>NEW_AVG</var></code>.</p>
+ <p>If <var>he(1)</var> gets 100 on the remaining <var>plural(exam(1))</var>, the sum of <var>his(1)</var> scores will be <code><var>COUNT</var> \cdot <var>OLD_AVG</var> + <var>REMAINING</var> \cdot <var>100</var> = <var>COUNT * OLD_AVG + 100 * REMAINING</var></code>.</p>
+ <p><var>His(1)</var> overall average will then be <code><var>COUNT * OLD_AVG + 100 * REMAINING</var> \div <var>COUNT + REMAINING</var> = <var>NEW_AVG</var></code>.</p>
</div>
</div>
</div>
-
- <div class="hints">
- <p class="hint1"></p>
- <p class="hint2"></p>
- <p class="hint3"></p>
- <p class="hint4"></p>
- </div>
</div>
</body>
</html>
View
28 exercises/direct_and_inverse_variation.html
@@ -38,8 +38,8 @@
</code></p>
<div class="hints">
- <p class="relationship"><var>STATEMENT</var> if <code><var>V1</var> = k \cdot <var>V2</var></code> for some constant k</p>
- <p class="fits"><code><var>V1</var> = <var>MULTIPLIER</var> \cdot <var>V2</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
+ <p><var>STATEMENT</var> if <code><var>V1</var> = k \cdot <var>V2</var></code> for some constant k</p>
+ <p><code><var>V1</var> = <var>MULTIPLIER</var> \cdot <var>V2</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
</div>
<ul class="choices" data-show="5" data-none="true">
@@ -77,17 +77,17 @@
<p class="solution"><code>\frac{<var>V1</var>}{<var>V2</var>} = <var>MULTIPLIER</var></code></p>
<div class="hints">
- <p class="transform">If you divide each side of this expression by <code><var>V2</var></code>, you get <code>\frac{<var>V1</var>}{<var>V2</var>} = k</code> for some constant <code>k</code>.</p>
- <p class="fits"><code>\frac{<var>V1</var>}{<var>V2</var>} = <var>MULTIPLIER</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
+ <p>If you divide each side of this expression by <code><var>V2</var></code>, you get <code>\frac{<var>V1</var>}{<var>V2</var>} = k</code> for some constant <code>k</code>.</p>
+ <p><code>\frac{<var>V1</var>}{<var>V2</var>} = <var>MULTIPLIER</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
</div>
</div>
<div data-type="direct-variation" id="inverse-k">
<p class="solution"><code><var>MULTIPLIER</var> \cdot <var>V1</var> = <var>V2</var></code></p>
<div class="hints">
- <p class="transform">If you divide each side of this expression by <code>k</code>, you get <code>\frac{1}{k} \cdot <var>V1</var> = <var>V2</var></code>.</p>
- <p class="fits"><code><var>MULTIPLIER</var> \cdot <var>V1</var> = <var>V2</var></code> fits this pattern, with <code>k = <var>MULTIPLIER_INVERSE</var></code>.</p>
+ <p>If you divide each side of this expression by <code>k</code>, you get <code>\frac{1}{k} \cdot <var>V1</var> = <var>V2</var></code>.</p>
+ <p><code><var>MULTIPLIER</var> \cdot <var>V1</var> = <var>V2</var></code> fits this pattern, with <code>k = <var>MULTIPLIER_INVERSE</var></code>.</p>
</div>
</div>
@@ -106,8 +106,8 @@
<p class="solution"><code><var>V1</var> = <var>MULTIPLIER</var> \cdot \frac{1}{<var>V2</var>}</code></p>
<div class="hints">
- <p class="relationship"><var>STATEMENT</var> if <code><var>V1</var> = k \cdot \frac{1}{<var>V2</var>}</code> for some constant k</p>
- <p class="fits"><code><var>V1</var> = <var>MULTIPLIER</var> \cdot \frac{1}{<var>V2</var>}</code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
+ <p><var>STATEMENT</var> if <code><var>V1</var> = k \cdot \frac{1}{<var>V2</var>}</code> for some constant k</p>
+ <p><code><var>V1</var> = <var>MULTIPLIER</var> \cdot \frac{1}{<var>V2</var>}</code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
</div>
<ul class="choices" data-show="5" data-none="true">
@@ -148,8 +148,8 @@
<p class="solution"><code><var>V1</var> \cdot <var>V2</var> = <var>MULTIPLIER</var></code></p>
<div class="hints">
- <p class="transform">If you multiply each side of this expression by <code><var>V2</var></code>, you get <code><var>V1</var> \cdot <var>V2</var> = k</code> for some constant <code>k</code>.</p>
- <p class="fits"><code><var>V1</var> \cdot <var>V2</var> = <var>MULTIPLIER</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
+ <p>If you multiply each side of this expression by <code><var>V2</var></code>, you get <code><var>V1</var> \cdot <var>V2</var> = k</code> for some constant <code>k</code>.</p>
+ <p><code><var>V1</var> \cdot <var>V2</var> = <var>MULTIPLIER</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
</div>
</div>
@@ -161,16 +161,10 @@
<p>If you divide each side of this expression by <code>k</code>, you get <code>\frac{<var>V1</var>}{k} = \frac{1}{<var>V2</var>}</code>.</p>
<p>Then you can take the inverse of each side to get <code>\frac{k}{<var>V1</var>} = <var>V2</var></code>.</p>
</div>
- <p class="fits"><code><var>MULTIPLIER</var> \cdot \frac{1}{<var>V1</var>} = <var>V2</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
+ <p><code><var>MULTIPLIER</var> \cdot \frac{1}{<var>V1</var>} = <var>V2</var></code> fits this pattern, with <code>k = <var>MULTIPLIER</var></code>.</p>
</div>
</div>
</div>
-
- <div class="hints">
- <p class="relationship"></p>
- <p class="transform"></p>
- <p class="fits"></p>
- </div>
</div>
</body>
</html>
View
30 exercises/equivalent_fractions.html
@@ -22,9 +22,9 @@
</div>
<div class="solution"><var>D</var></div>
<div class="hints">
- <p class="whatidid">To get the right numerator <code><var>C</var></code>, the left numerator <code><var>A</var></code> was multiplied by <code><var>M</var></code>.</p>
- <p class="whatyoushoulddo">To find the right denominator, multiply the left denominator by <code><var>M</var></code> as well.</p>
- <p class="whatyouget"><code><var>B</var> \times <var>M</var> = <var>D</var></code></p>
+ <p>To get the right numerator <code><var>C</var></code>, the left numerator <code><var>A</var></code> was multiplied by <code><var>M</var></code>.</p>
+ <p>To find the right denominator, multiply the left denominator by <code><var>M</var></code> as well.</p>
+ <p><code><var>B</var> \times <var>M</var> = <var>D</var></code></p>
</div>
</div>
@@ -34,9 +34,9 @@
</div>
<div class="solution"><var>C</var></div>
<div class="hints">
- <p class="whatidid">To get the right denominator <code><var>D</var></code>, the left denominator <code><var>B</var></code> was multiplied by <code><var>M</var></code>.</p>
- <p class="whatyoushoulddo">To find the right numerator, multiply the left numerator by <code><var>M</var></code> as well.</p>
- <p class="whatyouget"><code><var>A</var> \times <var>M</var> = <var>C</var></code></p>
+ <p>To get the right denominator <code><var>D</var></code>, the left denominator <code><var>B</var></code> was multiplied by <code><var>M</var></code>.</p>
+ <p>To find the right numerator, multiply the left numerator by <code><var>M</var></code> as well.</p>
+ <p><code><var>A</var> \times <var>M</var> = <var>C</var></code></p>
</div>
</div>
@@ -46,9 +46,9 @@
</div>
<div class="solution"><var>B</var></div>
<div class="hints">
- <p class="whatidid">To get the right numerator <code><var>A</var></code>, the left numerator <code><var>C</var></code> was divided by <code><var>M</var></code>.</p>
- <p class="whatyoushoulddo">To find the right denominator, divide the left denominator by <code><var>M</var></code> as well.</p>
- <p class="whatyouget"><code><var>D</var> \div <var>M</var> = <var>B</var></code></p>
+ <p>To get the right numerator <code><var>A</var></code>, the left numerator <code><var>C</var></code> was divided by <code><var>M</var></code>.</p>
+ <p>To find the right denominator, divide the left denominator by <code><var>M</var></code> as well.</p>
+ <p><code><var>D</var> \div <var>M</var> = <var>B</var></code></p>
</div>
</div>
@@ -58,18 +58,12 @@
</div>
<div class="solution"><var>A</var></div>
<div class="hints">
- <p class="whatidid">To get the right denominator <code><var>B</var></code>, the left denominator <code><var>D</var></code> was divided by <code><var>M</var></code>.</p>
- <p class="whatyoushoulddo">To find the right numerator, divide the left numerator by <code><var>M</var></code> as well.</p>
- <p class="whatyouget"><code><var>C</var> \div <var>M</var> = <var>A</var></code></p>
+ <p>To get the right denominator <code><var>B</var></code>, the left denominator <code><var>D</var></code> was divided by <code><var>M</var></code>.</p>
+ <p>To find the right numerator, divide the left numerator by <code><var>M</var></code> as well.</p>
+ <p><code><var>C</var> \div <var>M</var> = <var>A</var></code></p>
</div>
</div>
</div>
-
- <div class="hints">
- <p class="whatidid"></p>
- <p class="whatyoushoulddo"></p>
- <p class="whatyouget"></p>
- </div>
</div>
</body>
</html>
View
22 exercises/mean_median_and_mode.html
@@ -72,12 +72,12 @@
<p class="solution"><var>MEAN</var></p>
<div class="hints">
- <p class="hint-explanation">To find the mean, add the numbers and divide by the number of numbers.</p>
- <div class="hint-process">
+ <p>To find the mean, add the numbers and divide by the number of numbers.</p>
+ <div>
<div class="number-list"><code><var>INTEGER_LIST</var></code></div>
<p>There are <code><var>INTEGERS_COUNT</var></code> numbers.</p>
</div>
- <p class="hint-result">The mean is <code>\frac{<var>sum(INTEGERS)</var>}{<var>INTEGERS_COUNT</var>}</code>,
+ <p>The mean is <code>\frac{<var>sum(INTEGERS)</var>}{<var>INTEGERS_COUNT</var>}</code>,
or <code><var>MEAN</var></code>.</p>
</div>
</div>
@@ -92,17 +92,17 @@
<p class="solution"><var>MEDIAN</var></p>
<div class="hints">
- <div class="hint-explanation">
+ <div>
<p>First, order the numbers, giving:</p>
<div class="number-list"><code><var>SORTED_LIST</var></code></div>
</div>
- <div class="hint-process">
+ <div>
<p data-if="INTEGERS.length % 2 === 0">Since we have <code>2</code> middle numbers, the median is the mean of <strong>those</strong> two numbers!</p>
<p data-else>The median is the 'middle' number:</p>
<div class="number-list"><code><var>MEDIAN_LIST</var></code></div>
<p data-if="SORTED_INTS.length % 2 === 0">The median is <code>\frac{<var>SORTED_INTS[ SORTED_INTS.length / 2 - 1 ]</var> + <var>SORTED_INTS[ SORTED_INTS.length / 2 ]</var>}{2}</code>.</p>
</div>
- <p class="hint-result">So the median is <code><var>MEDIAN</var></code>.</p>
+ <p>So the median is <code><var>MEDIAN</var></code>.</p>
</div>
</div>
@@ -115,19 +115,13 @@
</div>
<div class="hints">
- <p class="hint-explanation">The mode is the most frequent number.</p>
- <p class="hint-result">There are more <code><var>MODE</var></code>s than any other number, so <code><var>MODE</var></code> is the mode.</p>
+ <p>The mode is the most frequent number.</p>
+ <p>There are more <code><var>MODE</var></code>s than any other number, so <code><var>MODE</var></code> is the mode.</p>
</div>
<p class="solution"><var>MODE</var></p>
</div>
</div>
-
- <div class="hints">
- <p class="hint-explanation"></p>
- <p class="hint-process"></p>
- <p class="hint-result"></p>
- </div>
</div>
</body>
</html>
View
93 exercises/order_of_operations.html
@@ -28,13 +28,13 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> + (<var>B*C</var>)
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>A</var> + <var>B*C</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>A+B*C</var>
</code></p>
</div>
@@ -49,10 +49,10 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> + <var>B*C</var>
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>A+B*C</var>
</code></p>
</div>
@@ -67,13 +67,13 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> \times (<var>B+C</var>)
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>A</var> \times <var>B+C</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>A*(B+C)</var>
</code></p>
</div>
@@ -88,13 +88,13 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> + (<var>B</var>)
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>A</var> + <var>B</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>A+B</var>
</code></p>
</div>
@@ -109,10 +109,10 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> + <var>B</var>
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>A+B</var>
</code></p>
</div>
@@ -127,13 +127,13 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
\frac{ <var>(A*(B+C))</var> }{ (<var>(B+C)</var>) }
</code></p>
- <p class="hint2"><code>
+ <p><code>
\frac{ <var>(A*(B+C))</var> }{ <var>B+C</var> }
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>A</var>
</code></p>
</div>
@@ -148,13 +148,13 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
\frac{ <var>(A*(B-C))</var> }{ (<var>(B-C)</var>) }
</code></p>
- <p class="hint2"><code>
+ <p><code>
\frac{ <var>(A*(B-C))</var> }{ <var>B-C</var> }
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>A</var>
</code></p>
</div>
@@ -169,22 +169,22 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
(<var>A</var> + (<var>B</var> - <var>(C*D)</var>)) \times <var>E</var>
</code></p>
- <p class="hint2"><code>
+ <p><code>
(<var>A</var> + (<var>(B-(C*D))</var>)) \times <var>E</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
(<var>A</var> + <var>(B-(C*D))</var>) \times <var>E</var>
</code></p>
- <p class="hint4"><code>
+ <p><code>
(<var>(A+(B-(C*D)))</var>) \times <var>E</var>
</code></p>
- <p class="hint5"><code>
+ <p><code>
<var>(A+(B-(C*D)))</var> \times <var>E</var>
</code></p>
- <p class="hint6"><code>
+ <p><code>
<var>A+(B-(C*D)))*E</var>
</code></p>
</div>
@@ -199,19 +199,19 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> + (<var>B</var> - <var>(C*D)</var>) \times <var>E</var>
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>A</var> + (<var>(B-(C*D))</var>) \times <var>E</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>A</var> + <var>(B-(C*D))</var> \times <var>E</var>
</code></p>
- <p class="hint4"><code>
+ <p><code>
<var>A</var> + <var>((B-(C*D))*E)</var>
</code></p>
- <p class="hint5"><code>
+ <p><code>
<var>A+((B-(C*D))*E)</var>
</code></p>
</div>
@@ -226,16 +226,16 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> - <var>B</var> \times <var>C</var> + <var>D</var>
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>A</var> - <var>(B*C)</var> + <var>D</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>(A-B*C)</var> + <var>D</var>
</code></p>
- <p class="hint4"><code>
+ <p><code>
<var>A-B*C+D</var>
</code></p>
</div>
@@ -250,16 +250,16 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
<var>A</var> \times <var>B</var> + <var>C</var> \times <var>D</var>
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>(A*B)</var> + <var>C</var> \times <var>D</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>(A*B)</var> + <var>(C*D)</var>
</code></p>
- <p class="hint4"><code>
+ <p><code>
<var>(A*B)+(C*D)</var>
</code></p>
</div>
@@ -274,30 +274,21 @@
</p>
<div class="hints">
- <p class="hint1"><code>
+ <p><code>
(<var>A</var> + <var>(B*C)</var>) - <var>C</var> \times <var>E</var>
</code></p>
- <p class="hint2"><code>
+ <p><code>
<var>(A+(B*C))</var> - <var>C</var> \times <var>E</var>
</code></p>
- <p class="hint3"><code>
+ <p><code>
<var>(A+(B*C))</var> - <var>(D*E)</var>
</code></p>
- <p class="hint4"><code>
+ <p><code>
<var>(A+B*C)-(D*E)</var>
</code></p>
</div>
</div>
</div>
-
- <div class="hints">
- <p class="hint1"></p>
- <p class="hint2"></p>
- <p class="hint3"></p>
- <p class="hint4"></p>
- <p class="hint5"></p>
- <p class="hint6"></p>
- </div>
</div>
</body>
</html>
View
35 exercises/probability_1.html
@@ -49,10 +49,10 @@
</ul>
<div class="hints">
- <p class="hint1">There are <code><var>RED</var> + <var>BLUE</var> + <var>GREEN</var> = <var>TOTAL</var></code> <var>MARBLE</var>s in the <var>CONTAINER</var>.</p>
- <p class="hint2">There are <code><var>CHOSEN_NUMBER</var></code> <var>CHOSEN_COLOR</var> <var>MARBLE</var>s.
+ <p>There are <code><var>RED</var> + <var>BLUE</var> + <var>GREEN</var> = <var>TOTAL</var></code> <var>MARBLE</var>s in the <var>CONTAINER</var>.</p>
+ <p>There are <code><var>CHOSEN_NUMBER</var></code> <var>CHOSEN_COLOR</var> <var>MARBLE</var>s.
<span data-if="NOT">That means <code><var>TOTAL</var> - <var>CHOSEN_NUMBER</var> = <var>NUMER</var></code> are <em>not</em> <var>CHOSEN_COLOR</var>.</span></p>
- <p class="hint3">The probability is <code>\displaystyle <var>fractionSimplification(NUMER, TOTAL)</var></code>.</p>
+ <p>The probability is <code>\displaystyle <var>fractionSimplification(NUMER, TOTAL)</var></code>.</p>
</div>
</div>
@@ -105,10 +105,10 @@
</ul>
<div class="hints">
- <p class="hint1">When rolling a die, there are <code>6</code> possibilities: 1, 2, 3, 4, 5, and 6.</p>
- <p class="hint2" data-if="RESULT_COUNT == 1">In this case, only <code>1</code> result is favorable: the number <var>RESULT_POSSIBLE[0]</var>.</p>
- <p class="hint2" data-else>In this case, <code><var>RESULT_COUNT</var></code> results are favorable: <var>toSentence(RESULT_POSSIBLE)</var>.</p>
- <p class="hint3">The probability is <code>\displaystyle <var>fractionSimplification(RESULT_COUNT, 6)</var></code>.</p>
+ <p>When rolling a die, there are <code>6</code> possibilities: 1, 2, 3, 4, 5, and 6.</p>
+ <p data-if="RESULT_COUNT == 1">In this case, only <code>1</code> result is favorable: the number <var>RESULT_POSSIBLE[0]</var>.</p>
+ <p data-else>In this case, <code><var>RESULT_COUNT</var></code> results are favorable: <var>toSentence(RESULT_POSSIBLE)</var>.</p>
+ <p>The probability is <code>\displaystyle <var>fractionSimplification(RESULT_COUNT, 6)</var></code>.</p>
</div>
</div>
@@ -187,10 +187,10 @@
</ul>
<div class="hints">
- <p class="hint1">There are <code><var>(new Array(REPS)).join("2 \\cdot ")</var>2 = 2^{<var>REPS</var>} = <var>TWO_TO_REPS</var></code> possibilities for the sequence of flips.</p>
- <p class="hint2">The possibilities are <var>toSentence(ALL_SEQS)</var>.</p>
- <p class="hint3">There <var>WANTED_COUNT == 1 ? "is only" : "are"</var> <var>plural(WANTED_COUNT, "favorable outcome")</var>: <var>toSentence(WANTED_LIST)</var>.</p>
- <p class="hint4">The probability is <code>\displaystyle <var>fractionSimplification(WANTED_COUNT, TWO_TO_REPS)</var></code>.</p>
+ <p>There are <code><var>(new Array(REPS)).join("2 \\cdot ")</var>2 = 2^{<var>REPS</var>} = <var>TWO_TO_REPS</var></code> possibilities for the sequence of flips.</p>
+ <p>The possibilities are <var>toSentence(ALL_SEQS)</var>.</p>
+ <p>There <var>WANTED_COUNT == 1 ? "is only" : "are"</var> <var>plural(WANTED_COUNT, "favorable outcome")</var>: <var>toSentence(WANTED_LIST)</var>.</p>
+ <p>The probability is <code>\displaystyle <var>fractionSimplification(WANTED_COUNT, TWO_TO_REPS)</var></code>.</p>
</div>
</div>
@@ -238,19 +238,12 @@
</ul>
<div class="hints">
- <p class="hint1">There are <var>POSSIBLE.length</var> possibilities for the chosen number.<br>The possibilities are <var>toSentence(POSSIBLE)</var>.</p>
- <p class="hint2">There <var>WANTED_COUNT == 1 ? "is only" : "are"</var> <var>plural(WANTED_COUNT, "favorable outcome")</var>: <var>toSentence(WANTED_LIST)</var>.</p>
- <p class="hint3">The probability is <code>\displaystyle <var>fractionSimplification(WANTED_COUNT, POSSIBLE.length)</var></code>.</p>
+ <p>There are <var>POSSIBLE.length</var> possibilities for the chosen number.<br>The possibilities are <var>toSentence(POSSIBLE)</var>.</p>
+ <p>There <var>WANTED_COUNT == 1 ? "is only" : "are"</var> <var>plural(WANTED_COUNT, "favorable outcome")</var>: <var>toSentence(WANTED_LIST)</var>.</p>
+ <p>The probability is <code>\displaystyle <var>fractionSimplification(WANTED_COUNT, POSSIBLE.length)</var></code>.</p>
</div>
</div>
</div>
-
- <div class="hints">
- <p class="hint1"></p>
- <p class="hint2"></p>
- <p class="hint3"></p>
- <p class="hint4"></p>
- </div>
</div>
</body>
</html>
View
21 exercises/radians_and_degrees.html
@@ -63,8 +63,8 @@
<p class="solution"><code><var>COMMON_RADIANS</var></code></p>
<div class="hints">
- <p class="to-convert">To convert from degrees to radians, you multiply by <code>\pi</code> and then divide by <code>180^{\circ}</code>.</p>
- <p class="answer"><code><var>COMMON_DEGREES</var>^{\circ} \times \frac{\pi}{(180^{\circ})} = <var>COMMON_RADIANS</var></code></p>
+ <p>To convert from degrees to radians, you multiply by <code>\pi</code> and then divide by <code>180^{\circ}</code>.</p>
+ <p><code><var>COMMON_DEGREES</var>^{\circ} \times \frac{\pi}{(180^{\circ})} = <var>COMMON_RADIANS</var></code></p>
</div>
<ul class="choices" data-show="4" data-none="true">
@@ -79,8 +79,8 @@
<p class="solution"><var>NUM_RADIANS</var></p>
<div class="hints">
- <p class="to-convert">To convert from degrees to radians, you multiply by <code>\pi</code> and then divide by <code>180^{\circ}</code>.</p>
- <p class="answer"><code><var>NUM_DEGREES</var>^{\circ} \times \frac{\pi}{180^{\circ}} = <var>NUM_RADIANS</var></code></p>
+ <p>To convert from degrees to radians, you multiply by <code>\pi</code> and then divide by <code>180^{\circ}</code>.</p>
+ <p><code><var>NUM_DEGREES</var>^{\circ} \times \frac{\pi}{180^{\circ}} = <var>NUM_RADIANS</var></code></p>
</div>
<ul class="choices" data-show="4" data-none="true">
@@ -95,8 +95,8 @@
<p class="solution"><var>COMMON_DEGREES</var>&deg;</p>
<div class="hints">
- <p class="to-convert">To convert from radians to degrees, you multiply by <code>180^{\circ}</code> and then divide by <code>\pi</code>.</p>
- <p class="answer"><code><var>COMMON_RADIANS</var> \times \frac{180^{\circ}}{\pi} = <var>COMMON_DEGREES</var>^{\circ}</code></p>
+ <p>To convert from radians to degrees, you multiply by <code>180^{\circ}</code> and then divide by <code>\pi</code>.</p>
+ <p><code><var>COMMON_RADIANS</var> \times \frac{180^{\circ}}{\pi} = <var>COMMON_DEGREES</var>^{\circ}</code></p>
</div>
<ul class="choices" data-show="4" data-none="true">
@@ -111,8 +111,8 @@
<p class="solution"><var>round(NUM_DEGREES)</var>&deg;</p>
<div class="hints">
- <p class="to-convert">To convert from radians to degrees, you multiply by <code>180^{\circ}</code> and then divide by <code>\pi</code>.</p>
- <p class="answer"><code><var>NUM_RADIANS</var> \times \frac{180^{\circ}}{\pi} = <var>NUM_DEGREES</var>^{\circ}</code></p>
+ <p>To convert from radians to degrees, you multiply by <code>180^{\circ}</code> and then divide by <code>\pi</code>.</p>
+ <p><code><var>NUM_RADIANS</var> \times \frac{180^{\circ}}{\pi} = <var>NUM_DEGREES</var>^{\circ}</code></p>
</div>
<ul class="choices" data-show="4" data-none="true">
@@ -122,10 +122,5 @@
</ul>
</div>
</div>
-
- <div class="hints">
- <p class="to-convert"></p>
- <p class="answer"></p>
- </div>
</body>
</html>

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