[Question]Melissa wants to make some dresses to sell at the upcoming festival. She has 56 square meters of fabric to make them. She knows that each dress takes 4 square meters of fabric and 3 hours to make. How many hours does she have to work?
[Answer]Each dress takes 4 square meters of fabric to make, so the number of dresses she can make will be 56 / 4 = 14 dresses. Each dress takes 3 hours to make, thus she will have to work 14 dresses x 3 hours / dress = 42 hours. The answer is 42.
Q: James has 7 more than 4 times the number of Oreos Jordan has. If there are 52 Oreos total, how many does James have?
A: Let x be the number of Oreos Jordan has. James has 7 + 4x Oreos. Total: 7 + 4x + x = 52. 5x + 7 = 52. 5x = 45. x = 9. James has 7 + 4(9) = 43 Oreos. The answer is 43.
Question: A family's water and electricity bills average $30 a month for the first 4 months and $24 a month for the last 2 months. If the family's bills were averaged over all 6 months, what would the average monthly bill be?
Answer: The sum of the bills of the family in the first 4 months is $30 / month x 4 months = $120. The sum of the bills of the family in the last 2 months is $24 / month x $2 = $48. The sum of the bills of the family over the 6 months is $120 + $48 = $168. Hence, their average monthly bill is $168 / 6 months = $28 / month. The answer is 28.
[Question]Coral is reading a book that is 600 pages long. She reads half of it in the first week, and 30 percent of the remaining pages the second week. How many pages must she read the third week in order to finish the book?
[Answer]Week 1:600 / 2 = 300. 600 - 300 = 300 pages remain. Week 2:300(.30) = 90 pages. 300 - 90 = 210 pages remain. Week 3:210 pages. The answer is 210.
Q: 4 friends went to buy from a clothes shop. Every item was 50% off. All four friends decided to buy a t-shirt. The original price of the t-shirt was 20 dollars. How much money did they spend in total?
A: After the 50% discount, the t - shirt cost 20 * 0.5 = $10. So in all, the 4 friends spent 4 * $10 = $40. The answer is 40.
Question: Lilah's family gallery has 400 photos. On a two-day trip to the Grand Canyon, they took half as many photos they have in the family's gallery on the first day and 120 more photos than they took on the first day on the second day. If they added all these photos to the family gallery, calculate the total number of photos in the gallery.
Answer:
On their first day to the grand canyon, the family took half as many photos as the ones they have in the gallery, meaning they took 1 / 2 * 400 = 200 photos. The total number of photos if they add the ones they took on the first day to the family's gallery is 400 + 200 = 600. On the second day, they took 120 more photos than they took on the first day, a total of 200 + 120 = 320 photos. After adding the photos they took on the second day to the galley, the number of photos will be 600 + 320 = 920. The answer is 920.