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14 June, 10:52

Mary's dog weights 81 pounds. Sandy's dog's weight is equal to 4 pounds less than 1/3 of marys dog's weight. How much does Mary's dog weight?

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  1. 14 June, 11:20
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    Mary 81

    Sandy 30

    Step-by-step explanation:

    S-3=M/3

    multiply by 3

    3s-9=m

    m=81

    3s-9=81

    add 9

    3s=90

    divide by 3

    s=30
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