Question

Ivanna bought some books. She spent a total of $71 after a discount of $5 off of her total purchase. Each book cost $4. How many books did she buy?Write an equation that could be used to answer the question above.

Answer 1

19 books

Step-by-step explanation:

Let the amount of books bought be x

If she spent a total of $71 after a discount of $5, the total amounshe spend on the books will be $76

If each book costs $4,

x books will cost $76

Cross multiply

1 * 76 = x * 4

76 = 4x

Rearrange

4x = 76

Divide both sides by 4

4x/4 = 76/4

x = 19

Hence she bought 19 books