Question

You purchase a DVD and two books. The cost of the DVD is 12.50. Your total bill before tax is 48.50. Write and slove an equation to find the cost of each book. Let n+ cost of book

Answer 1

The cost of each book is $18.

Explanation:

1. 12.50+2n=48.50

2, 12.50-12.50=cancels out

3. 48.50-12.50=36

4. 2n=36

5. 2n/2=n

6. 36/2=18

7. n=18