[Question]9 years from now, John will be 3 times as old as he was 11 years ago. How old is he now?
[Answer]Let J represent John’s age. We have J + 9 = 3(j − 11). So, J + 9 = 3J − 33. So, 9 = 2J − 33. So, 42 = 2J. Which means that John’s age is J = 42 / 2 = 21. The answer is 21.
Q: At A.T. Cross Luxury Pens, a pencil sells at twenty-five cents while a pen sells at fifteen cents. Bowen buys 40 pens and 2/5 times more pencils than pens from A.T. Cross Luxury Pens. Calculate the total amount of money Bowen spends.
A: Bowen bought 2 / 5 * 40 pens = 16 more pencils than pens. The total number of pencils that he bought is 40 pencils + 16 pencils = 56 pencils. If each pencil costs twenty - five cents, the total amount of money he spent on pencils is 56 pencils * $0.25 / pencil = $14. On pens, Bowen spent $0.15 / pen * 40 pens = $6. The total amount of money Bowen spent is $14 + $6 = $20. The answer is 20.
Question: Michael has 2 cats and 3 dogs. He needs to pay a friend to watch them, who charges $13 a night per animal. How much does Michael have to pay?
Answer: Michael has 5 animals because 2 + 3 = 5. Michael has to pay $65 because 5 x $13 = $65. The answer is 65.
[Question]Ivy baked 20 cupcakes in the morning and fifteen more cupcakes in the afternoon than in the morning. How many cupcakes did she bake?
[Answer]In the afternoon, she baked 20 + 15 = 35 cupcakes more cupcakes. Therefore, she baked a total of 20 + 35 = 55 cupcakes. The answer is 55.
Q: Carmen is selling girl scout cookies. She sells three boxes of samoas to the green house for $4 each; two boxes of thin mints for $3.50 each and one box of fudge delights for $5 to the yellow house; and nine boxes of sugar cookies for $2 each to the brown house. How much money did Carmen make?
A: Carmen earned 3 * $4 = $12 at the green house. She earned 2 * $3.50 = $7 for the mints. She earned $7 + $5 = $12 at the yellow house. She earned 9 * $2 = $18 at the brown house. So, Carmen earned a total of $12 + $12 + 18 = $42. The answer is 42.
Question: Bill is making omelets for his family's breakfast. It takes him 3 minutes to chop a pepper, 4 minutes to chop an onion, and 1 minute to grate enough cheese for one omelet. It takes him 5 minutes to assemble and cook the omelet. If he needs to chop up four peppers, two onions, and also grates cheese for cooking each of five omelets, how long will he spend preparing for and cooking the five omelets?
Answer:
First find the total time Bill spends chopping peppers: 4 peppers * 3 minutes / pepper = 12 minutes. Then find the total time Bill spends chopping onions: 2 onions * 4 minutes / onion = 8 minutes. Then find the combined time to grate cheese for and cook each omelet: 5 + 1 minute / omelet = 6 minutes. Then multiply the time per omelet by the number of omelets: 5 omelets * 6 minutes / omelet = 30 minutes. Then add the cook time to the chopping time to find the total time Bill spends: 30 minutes + 12 minutes + 8 minutes = 50 minutes. The answer is 50.