### Home > AC > Chapter 4 > Lesson 4.2.3 > Problem 4-94

4-94.

MORE OR LESS Homework Help ✎

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?

Write an equation using

*x*and*y*for Judy and Ida. What does*x*represent? What does*y*represent?Solve this problem using any method you choose.

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

Judy: *y* = 20 + 6*x*

Ida: *y* = 172 − 4*x*

Try using the Equal Values Method.