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15 September, 00:56

A wallet contains $40 has three times as many $1 notes as $5 notes. find the number of each kind

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  1. 15 September, 03:07
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    X=one dollar

    y=5 dollar

    x=3y

    1x+5y=40

    3y+5y=40

    8y=40

    divide 8

    y=5

    x=3y

    x=3 (5)

    x=15

    15 one dollars

    5 five dollars
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