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30 June, 03:03

In reducing ones speed from 70mph to 50 mph how much of a percentage decrease in stopping distance is realized

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  1. 30 June, 03:20
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    28.57142857% decrease

    Step-by-step explanation:

    To find the percentage decrease in speed, take the original speed minus the new speed over the original speed. Then multiply by 100%

    original speed = 70 new speed = 50

    percent decrease = (70-50) / 70 * 100%

    = 20/70 * 100%

    =28.57142857%
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