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21 September, 12:52

The cost of a book was decreased from 60 to 50 by what percent the price decrased with solution

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  1. 21 September, 12:59
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    The price decreased by 16 1/3%, or approximately 16.3%

    Step-by-step explanation:

    Use the formula for percent change. If the answer is negative, it is a percent decrease. if the answer is positive, it is a percent increase.

    percent change = (new price - old price) / (old price) * 100%

    In this case, use:

    new price = 50

    old price = 60

    percent change = (new price - old price) / (old price) * 100%

    percent change = (50 - 60) / 60 * 100%

    percent change = - 10/60 * 100%

    percent change = - 1/6 * 100%

    percent change = - 100/6% = - 50/3% = - 16 1/3%

    The price decreased by 16 1/3%, or approximately 16.3%
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