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25 January, 00:32

Tinley is training to run a half-marathon. She sets a pace so that every mile takes 7 minutes. Write an equation for the amount of time, t, it takes Tinley to run m miles.

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  1. 25 January, 00:53
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    By definition, it is known that distance equals speed by time.

    We have then

    d = v * t

    Clearing t, we have:

    t = (d) / (v)

    Then, we have that she runs at a speed of

    v = 1/7 mi / min

    Substituting the values we have

    t = (d) / (v)

    t = (m) / ((1/7))

    Rewriting

    t = 7m

    answer

    an equation for the amount of time, t, it takes Tinley to run m miles is

    t = 7m
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