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26 August, 17:45

Charlie runs at a speed if 3 yards per second. About how many mph dies charlie run?

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Answers (2)
  1. 26 August, 20:20
    0
    (3 yard/sec) x (3600 sec/hour) x (1mile/1760 yard) = 6.136 mile/hour (rounded)
  2. 26 August, 21:42
    0
    1760 yards = 1mile

    1 yard = 1/1760 miles

    3 yard = 1/1760*3 miles

    = 0.0017 miles

    now,

    1 hour = 60 minutes

    = (60 * 60) seconds

    = 3600 seconds

    so

    1 second = 1/3600 hour

    so charlie travels at the speed of 0.0017 / (1/3600) mph

    = 6.12mph
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