Question

Brandy wants to buy a camera for $315. Suppose she saves $15 a week. How many weeks will it take to afford the camera? Write your answer as a equation with x as a variable

Answer 1

Brandy will save $315 in 21 weeks.

Explanation:

Framing algebraic expressions:

Let x be the number of weeks.

If in a week, he saves $15, then in x weeks he will save 15x.

15x = 315

To find the number of weeks, divide 315 by the money saved in a week.

x = 315 ÷ 15

x = 21

21 weeks.