Phoebe

2021-02-12

Manuel has $54 to buy CDs and books. Each CD costs $9, and each book costs $6. He wants to buy exactly 7 items to spend all of his money. Write a system of equations that could be solved to determine the number of CDs and the number of books Manuel buys.

l1koV

Skilled2021-02-13Added 100 answers

Let c be the number of CDs and b be the number of books that he buys.

Since he buys exactly 7 items, then

If each CD costs $9 dollars, then he will spend 9c dollars buying cc CDs. If each book costs $6, then he will spend 6b dollars buying bb books. The total amount he spends is then

The system of equations is then