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7-81.

Aja and Emilie were riding their skateboards. They knew that they could ride 3 miles in 20 minutes. Homework Help ✎

  1. How far can the girls ride in 45 minutes?

    Set up a proportion.

    miles

  2. If represents the distance in miles and represents the time in minutes, write an equation to represent the distance traveled for any time.

    You can also use a proportion for this problem.

    Multiply both sides by to simplify the equation.