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30 September, 16:13

An Olympian swam the 200-meter freestyle at a speed of 1.8 meters per second. An Olympic runner ran the 200-meter dash in 21.3 seconds. How much faster was the runner's speed than the swimmer's speed to the nearest tenth of a meter per second?

A 0.1 meters per second

B 0.4 meters per second

C 7.6 meters per second

D 9.4 meters per second

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  1. 30 September, 18:49
    0
    Speed = Distance/Time

    Runner Speed = 200/21.3 = 9.4 m/s

    Swimmer Speed = 1.8 m/s

    9.4 - 1.8 = 7.6 m/s

    C
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