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

  1. 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?

    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.