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3 August, 15:29

of the 90 gallons a average person uses a day, 30% is used out doors. Mason wants to know how much water is used indoors

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  1. 3 August, 18:16
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    63 gallons.

    Step-by-step explanation:

    If 30% of water is used outdoors, that leaves 70% to be used indoors. Since an average person uses 90 gallons, all we need to do is fine 70% of 90 gallons. To do this, we have to multiply 90 by 0.7:

    90 * 0.7 = 63

    In conclusion, 63 gallons of water are used indoors.
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