Q: Alan likes to support music creators, so instead of downloading songs from the internet, he visits a record store once in a while. He decided now to buy 2 CDs by "The Dark", 1 CD by the creator "AVN", and 5 CDs that are mixes of songs from the 90s. The price of the "AVN" CD is $12 and it is half the price of one CD by "The Dark". The 5 CDs of 90s music cost is 40% of all the cost of all other CDs Alan is going to buy. How much will Alan have to pay for all the products?
A: If one "AVN" is half the price of one "The Dark" CD, that means one CD of "The Dark" costs 12 * 2 = $24. So for two "The Dark" CDs, Alan needs to pay 24 * 2 = $48. So all CDs cost by now 12 + 48 = $60. The 90s music CDs cost 40 / 100 * 60 = $24. That means for all CDs Alan needs to pay 60 + 24 = $84. The answer is 84.
Question: Erin is sorting through the library books to decide which ones to replace. She finds 8 less than 6 times as many obsolete books as damaged books. If she removes 69 books total, how many books were damaged?
Answer: Let o be the number of obsolete books and d be the number of damaged books. We know that o + d = 69 and o = 6d - 8. Substituting the first equation into the second equation, we get 6d - 8 + d = 69. Combining like terms, we get 7d - 8 = 69. Adding 8 to both sides, we get 7d = 77. Dividing both sides by 7, we get d = 11. The answer is 11.
[Question]Maddie bought 2 packs of white T-shirts and 4 packs of blue T-shirts for her basketball team. The white T-shirts come in packs of 5, and the blue T-shirts come in packs of 3. Each T-shirt cost $3. How much did Maddie spend in all?
[Answer]The number of white T - shirts is 2 5 = 10. The number of blue T - shirts is 4 3 = 12. The total number of T - shirts is 10 + 12 = 22. Maddie spent $3 22 = $66 in all. The answer is 66.
Q: Rihanna has $50 to go to the supermarket. Rihanna bought 6 mangoes and 6 cartons of apple juice. Each mango cost $3 and each carton of apple juice cost $3. How much money does Rihanna have left?
A: The cost of the mangoes is 6 mangoes $3 / mango = $18. The cost of the apple juice is 6 cartons $3 / carton = $18. Find the total cost of the groceries which is $18 + $18 = $36. Rihanna has $50 $36 = $14 left. The answer is 14.
Question: Tas and his friends put up a t-shirt for sale. They ended up selling 200 t-shirts in 25 minutes. Half of the shirts were black and cost $30, while the other half were white and cost $25. How much money did they make per minute during the sale?
Answer: The total revenue from black shirts was 100 * $30 = $3000. The total revenue from white shirts was 100 * $25 = $2500. The total revenue from all shirts sold was $3000 + $2500 = $5500. Tas and his friends ended up making $5500 / 25 minutes = $220 per minute. The answer is 220.
Q: Mike bought a DVD of his favorite movie. He paid $5 for it at the store. A friend of Mike's, Steve, saw this and also decided to buy a DVD of the movie, but it was already sold out. He needed to order it online, which cost him twice as much. And in addition, he needed to pay the shipping costs which were 80% of the price of the film he ordered. How much did Steve pay to get the DVD in total?
A:
The cost of the movie online was twice what Mike paid, so 2 * 5 = $10. The shopping costs were standing at 80 / 100 * 10 = $8. So in total Steve paid 10 + 8 = $18. The answer is 18.