Question

Valerie is saving money for a new backpack. The one she wants costs $57.65. If she saves 7.25 a week, about how many weeks will it take her to have enough money for the backpack?

Answer 1

8 weeks

Explanation:

Given Valerie want's to buy a backpack which costs $57.65

Also given that she saves $7.25 a week

Let the number of weeks she saves the money be x

For her to buy the backpack the following inequality should be satisfied

amount saved > cost of the item

The amount saved =
`Saving per week * number of weeks`

7.25x > 57.65

x > 7.95

Since x is an integer we have x = 8

Therefore she has to save 8 weeks to buy the item