Answer this question:Janette went camping for 5 days. She brought along 40 pieces of beef jerky. She wants to ration it out so that she can eat 1 for breakfast, 1 for lunch, and 2 for dinner each day. When she returns from the trip, she plans on giving half of the remaining pieces to her brother. How many pieces of beef jerky will she have left once she does this?
Each day she eats a total of 1 + 1 + 2 = 4 pieces of jerky. For the entire trip, she will consume a total of 4 * 5 = 20 pieces of jerky. She gives half to her brother, which will leave her a total of 20 / 2 = 10 pieces of jerky.
The answer is 10.

Answer this question:Angela wants to check her math homework answers with her friends, but some of them aren't done yet. Out of 20 problems, Martha has finished 2, Jenna has finished four times the number Martha did minus 2, and Mark has finished half the number Jenna did. If none of the friends worked on any of the same problems, how many problems have no one but Angela finished?
Four times the number of problems Martha answered is 4 x 2 = 8. So, Jenna answered 8 - 2 = 6 problems. The number of problems Mark answered is 6 / 2 = 3. The total number of problems Martha, Jenna, and Mark answered is 2 + 6 + 3 = 11. So, this means Angela was able to answer 20 - 11 = 9 problems.
The answer is 9.

Answer this question:Musa is the class teacher of a class of 45 students. He wants to split them into three groups by age. If a third of the class is under 11 years, and two-fifths are above 11 but under 13, how many students will be in the third group (13 years and above)?
The first group is a third of the class which is (1 / 3) * 45 = 15 students. There are 15 students in the first group, so there are 45 - 15 = 30 students. The second group is two - fifths of the class which is (2 / 5) * 45 = 18 students. There are 18 in the second group so there are 30 - 18 = 12 students left in the third group.
The answer is 12.

Answer this question:Your mom bought a refrigerator and a washing machine. Note that the price of the refrigerator is $4275 and the price of the washing machine is $1490 less than the price of the refrigerator. Calculate the total price of the purchases in dollars.
The price of the washing machine is $4275 - $1490 = $2785. The total price of the purchases is $4275 + $2785 = $7060.
The answer is 7060.