Jamie has saved $42 of her allowance money to buy books. If she buys 5 books at d dollars per book, she will have 42-5d of her allowance left. How much does she have left if the books cost $3.50 each?

Question

Mathematics

Fields

7 May, 00:13

Jamie has saved $42 of her allowance money to buy books. If she buys 5 books at d dollars per book, she will have 42-5d of her allowance left. How much does she have left if the books cost $3.50 each?

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Answers (2)

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Brittany Chambers · Answer 1

First, you plug in 3.50 for d. Then, you multiply 5 and 3.50 and get 17.50. After that, you subtract 17.50 from 42, and you get 24.50. That means that Jamie will have $24.50 of her allowance left.

German Wright · Answer 2

42 - 5d

42 - 5 (3.50)

42 - 17.5

$34.50

She has $34.50 left