CPM Homework Banner

Home > CCA > Chapter 3 > Lesson 3.1.2 > Problem 3-23

3-23.

Write and solve an equation to represent the given situation. Be sure to define your variable.

Samantha currently has $1500 in the bank and is spending $35 per week. How many weeks will it take until her account is worth only $915? Homework Help ✎

Think of the situation as Samantha having $1500 minus $35 times the number of weeks she has been spending. Use x to represent the number of weeks she has been spending.

You want to know when she will have $915 left, so set your expression equal to that amount. Then solve for x.

1500 − 35x = 915

16 weeks and 5 days