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15 September, 05:59

Robert can run 1/2 of a mile in 1/15 of an hour.

How many miles can Robert run in 1 hour?

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Answers (2)
  1. 15 September, 06:58
    0
    You can set up a proportion:

    1/2:1/15=x:1

    Cross multiply:

    1/2=1/15x

    Divide both sides by 1/15:

    7.5=x

    Robert can run 7.5 miles in an hour
  2. 15 September, 09:33
    0
    7 1/2, because 1/2 x 15 is 7.5 or 7 1/2
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