Q: Four small panda bears and five bigger panda bears eat 25 pounds and 40 pounds of fresh bamboo sprouts every day, respectively. How many pounds of bamboo do the 9 pandas eat in a week?
A: The small panda bears eat a total of 4 x 25 = 100 pounds of bamboo every day. The bigger panda bears eat a total of 5 x 40 = 200 pounds of bamboo every day. So, the 9 pandas eat a total of 100 + 200 = 300 pounds of bamboo every day. Therefore, they eat a total of 300 x 7 = 2100 pounds in a week. The answer is 2100.
Question: I run 12 miles in 90 minutes. What is my average speed in miles per hour?
Answer: First convert 90 minutes to hours: 90 minutes / 60 minutes / hours = 1.5 hours. In 1 hour, I run 12 miles / 1.5 hours = 8 miles / hour. The answer is 8.
[Question]A truck driver's heavy semi truck can go 3 miles per gallon of gas. The truck driver needs to put gas in his truck at one gas station, but wants to put the minimum amount he needs to get him to a much cheaper gas station 90 miles away. He already has 12 gallons of gas in his tank. How many more gallons does the truck driver need to put in his semi to make it to the cheaper gas station?
[Answer]The truck driver can go 3 * 12 = 36 miles on the gas in his tank. He needs to go 90 - 36 = 54 more miles. Thus, the truck driver needs to put 54 / 3 = 18 more gallons of gas in his semi. The answer is 18.
Q: Goldie makes $5 an hour for pet-sitting. Last week, she worked for 20 hours while this week, she worked for 30 hours. How much did Goldie earn in two weeks for pet-sitting?
A: Goldie did pet - sitting for a total of 20 + 30 = 50 hours. So, she earned a total of $5 x 50 = $250. The answer is 250.
Question: Colston knows that his teacher loves drinking coffee and one day wants to see how much she drinks each week. He sees that she has a 20-ounce thermos and when she makes her coffee she pours a 1/2 cup of milk in, and then fills the coffee to the top. She does this twice a day. After the five-day school week, he decides to tell her, and when she hears how much coffee she drinks, she decides to drink 1/4 of what she normally drinks. How many ounces of coffee does she now drink a week?
Answer: 1 / 2 a cup = 4 ounces. Each thermos contains 16 ounces of coffee because 20 - 4 = 16. She drinks 32 ounces a day because 2 x 16 = 32. She drinks 160 ounces a week because 32 x 5 = 160. She starts drinking only 40 ounces because 160 / 4 = 40. The answer is 40.
Q: Mary is making a model sailboat. She wants to add three sails: a rectangular sail that measures 5 inches by 8 inches and two right triangular sails, one that's 3 inches long at the bottom and 4 inches tall and one that's 4 inches long at the bottom and 6 inches tall. (Remember you can find the area of a triangle by dividing the area of a square with the same height and length by 2). How many square inches of canvas does she need total?
A:
First find the area of the square sail: 5 inches * 8 inches = 40 square inches. Then find the area of a square sail with the same height and length as the first triangular sail: 3 inches * 4 inches = 12 square inches. Then divide the area in two to find the area of the triangular sail: 12 square inches / 2 = 6 square inches. Then find the area of a square sail with the same height and length as the second triangular sail: 4 inches * 6 inches = 24 square inches. Then divide the area in two to find the area of the triangular sail: 24 square inches / 2 = 12 square inches. Then add up the areas of all the sails to find the total amount of canvas needed: 12 square inches + 6 square inches + 40 square inches = 58 square inches. The answer is 58.