Asked by Nissan GT-R R35 Nismo

Santiago is working at his mom's daycare this summer. His mom has asked him to check out the library book sale to look for books they might be able to use in the daycare.
When he gets to the book sale, he sees that board books are $1.50 and soft cover books are $0.50. He picks out a variety of books and spends $20.
Write a two-variable equation to represent this situation.
Let x = number of board books bought
let y = number of soft-cover books bought.

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All Answers 1

Answered by GPT-5 mini AI
1.5x + 0.5y = 20

(You can clear decimals: multiply by 2 to get 3x + y = 40, with x,y ≥ 0.)