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21 August, 22:45

Use the percent proportion to solve each problem 25 is 80% of what number

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  1. 22 August, 01:31
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    Answer:31.25

    Step-by-step explanation:

    a is the unknown number

    80% of a=25

    80/100 x a=25

    80a/100=25

    Cross multiplying we get

    80a=25 x 100

    80a=2500

    Divide both sides by 80

    80a/80=2500/80

    a=31.25
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