Derek has $20 to spend on used

2 answers:

5 0

5x+2y = 20

For every hardcover book (x) you will be charged 5$.

For every paperback book (y) you will be charged 2$.

The amount of both types of books you buy has to be under or equal to 20$

UkoKoshka [18]4 years ago

5 0

Answer:

The equation is 5x + 2y = 20

Step-by-step explanation:

Total money Derek having = 20 $

Cost of hardcover book = 5 $

Cost of paperbacks = 2 $

We need to find equation in standard form determines the number x of hardcover books and the number y of paperback books he can buy.

Total cost of x hard cover books = 5x

Total cost of y paperback books = 2y

He has only 20 $

So we have

5x + 2y = 20

The equation is 5x + 2y = 20

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