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31 October, 13:10

Stephanie is trying to see how fast she can run the 100 meter dash. After a few practice runs, she runs her best 100 meter dash in 10.28 seconds. What was Stephanie's average speed while running the 100-meter dash? Round your calculation to the nearest tenth.

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  1. 31 October, 13:29
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    9.7 m/s

    Explanation:

    Speed is the ratio of distance to time. Stephanie's speed in meters per second is the number of meters divided by the number of seconds:

    speed = (100 m) / (10.28 s) ≈ 9.7 m/s
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