[Question]Marly has ten $20 bills, eight $10 bills, and four $5 bills. If she wants to change her bills to $100 bills, how many pieces of $100 bills will she have?
[Answer]The ten $20 bills amount to $20 x 10 = $200. The eight $10 bills amount to $10 x 8 = $80. The four $5 bills amount to $5 x 4 = $20. So, Marly has a total of $200 + $80 + $20 = $300. Therefore, she will have $300 / $100 = 3 pieces of $100 bills. The answer is 3.
Q: A convenience store sells 180 gallons of soda a week. They buy syrup boxes that can make 30 gallons of soda, and each box costs $40. How much do they pay for syrup a week?
A: They need to buy 180 / 30 = 6 boxes. So the cost is 6 * 40 = $240. The answer is 240.
Question: Kim loves to knit sweaters and can knit as many as 10 sweaters in a day if she gets the time. On a particular week, she knit 8 sweaters on Monday, 2 more sweaters on Tuesday than on Monday, 4 fewer sweaters on both Wednesday and Thursday than on Tuesday, and half the number of sweaters she had knit on Monday on Friday. Calculate the total number of sweaters she knit that week.
Answer: If she knit 8 sweaters on Monday and 2 more on Tuesday, she knit 8 + 2 = 10 sweaters on Tuesday. The total number of sweaters she had knit on Monday and Tuesday is 10 + 8 = 18. On Wednesday, she knit four fewer sweaters than the number she knit on Tuesday, which totals 10 - 4 = 6 sweaters. By Wednesday, she had knit 18 + 6 = 24 sweaters. On Thursday, she knit the same number of sweaters she had knit on Thursday, giving a total of 24 + 6 = 30 sweaters. On Friday, she knit half the number of sweaters she had knit on Monday, which totals 1 / 2 * 8 = 4 sweaters on Friday. So far, she has knit 30 + 4 = 34 sweaters by Friday. The answer is 34.
[Question]John gets a new EpiPen every 6 months. They cost $500 and insurance covers 75%. How much does he pay per year?
[Answer]He needs to buy 12 / 6 = 2 per year. Insurance covers 500 * .75 = $375. So he pays 500 - 375 = $125. So he pays 125 * 2 = $250. The answer is 250.
Q: Charles can earn $15 per hour when he housesits and $22 per hour when he walks a dog. If he housesits for 10 hours and walks 3 dogs, how many dollars will Charles earn?
A: Housesitting = 15 * 10 = 150. Dog walking = 22 * 3 = 66. Total earned is 150 + 66 = $216. The answer is 216.
Question: The Reptile House at the zoo has 5 fewer animals than 3 times the number of animals housed in the Rain Forest exhibit. If the Reptile House has 16 animals, how many are in the Rain Forest exhibit?
Answer:
Let x be the number of animals in the Rain Forest exhibit. 3x - 5 = 16. 3x = 21. x = 7. The answer is 7.