You and your friend skate at the same rate. You complete 6 laps in 5 minutes. How long does your friend take to complete 18 laps?

Question

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Answer 1

Hi Sarah,

You can answer this problem using equivalent rates.

6 laps 18 laps

5 minutes = x

Now multiply the numerator and denominator by 3 to determine the time for 18 laps:

6 laps x 3 18 laps

5 minutes x 3 = 15 minutes

It will take your friend 15 minutes to complete 18 laps.

Happy New Year!