### Home > CAAC > Chapter 4 > Lesson 4.2.3 > Problem4-94

4-94.
1. MORE OR LESS Homework Help ✎

2. Judy has $20 and is saving at a rate of$6 per week. Ida has $172 and is spending at a rate of$4 per week. After how many weeks will each have the same amount of money?

1. Write an equation using x and y for Judy and Ida. What does x represent? What does y represent?

2. Solve this problem using any method you choose.

x = the number of weeks
y = the amount of money

Judy: y = 20 + 6x
Ida: y = 172 − 4x

Try using the Equal Values Method.