[Question]Kim drives 30 miles to her friend's house. On the way back she has to take a detour that is 20% longer. She spends 30 minutes at her friend's house. She drives at a speed of 44 mph. How long did she spend away from home?
[Answer]The trip back was 30 * .2 = 6 miles longer than the trip there. So it was 30 + 6 = 36 miles. So the total drive was 30 + 36 = 66 miles. That means she drove for 66 / 44 = 1.5 hours. She stayed with her friend 30 / 60 = .5 hours. So the total time was 1.5 + .5 = 2 hours. The answer is 2.
Q: Nadine collected different colored pebbles. She has 20 white pebbles and half as many red pebbles. How many pebbles does she have in all?
A: Nadine has 20 / 2 = 10 red pebbles. Thus, she has 20 + 10 = 30 pebbles. The answer is 30.
Question: Markese earned 5 fewer dollars than Evan. Together they earned $37. How many dollars did Markese earn? Use E to represent how many dollars Evan earned.
Answer: E = Evan's earnings. Markese's earnings = E - 5. E + E - 5 = 37. 2E = 42. E = 21. Evan made $21 so Markese earned 21 - 5 = 16. Markese earned $16. The answer is 16.
[Question]Tammy has 10 orange trees from which she can pick 12 oranges each day. Tammy sells 6-packs of oranges for $2. How much money will Tammy have earned after 3 weeks if she sells all her oranges?
[Answer]Tammy picks 10 trees x 12 oranges / tree = 120 oranges per day. Tammy sells 120 oranges / day / 6 oranges / pack = 20 6 - packs of oranges a day. Tammy sells 20 packs / day x 7 days / week = 140 6 - packs a week. In 3 weeks Tammy sells 140 packs / week x 3 weeks = 420 6 - packs. Tammy makes 420 packs x $2 / pack = $840. The answer is 840.
Q: Joe's pizzeria has an amazing promotion. If you buy any regular large pizza you can get the next 3 medium pizzas for $5 each. What are your total savings if the regular medium pizza price is $18 and you take full advantage of the promotion?
A: If one medium pizza costs $18 and with the promotion I can buy one for $5, then I'm saving $18 - $5 = $13 on each medium pizza. If I take full advantage of the promotion, that means I bought all 3 medium pizzas, therefore I saved a total of 3 * $13 = $39 in total. The answer is 39.
Question: A candy store sold 20 pounds of fudge for $2.50/pound, 5 dozen chocolate truffles for $1.50 each and 3 dozen chocolate-covered pretzels at $2.00 each. How much money did the candy store make?
Answer:
20 pounds of fudge at $2.50 / pounds is 20 * 2.50 = $50.00. The 5 dozen truffles were sold in individual units so a dozen is equal to 12 so 5 * 12 = 60. 60 chocolate truffles, at $1.50 each sold for 60 * 1.50 = $90.00. The 3 dozen chocolate pretzels sold in individual units so a dozen is equal to 12 so 3 * 12 = 36. 36 chocolate pretzels sold for $2.00 each sold for 36 * 2 = $72.00. All total, the store made 50 + 90 + 72 = $212.00 from candy sales. The answer is 212.