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Thread: Data interpretation

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  2. #12
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    Re: Data interpretation

    The residential consumption (in billions) in 2010 was approximately 52. Take half of that amount,26, to represent the amount of water used by households with efficient appliances and plumbing. Let W represent the amount of water these households would have used otherwise.


    Set up a percent equation to solve for W. Remember, the saving were 35%, so subtract 35 from 100 to find the amount that would have been used.


    26=(100%-35%)*W
    26=65%*W
    26=0.65*W
    26/0.65=40=W


    The savings in billions of gallons were 40-26=14.

    Easy Data interpretation solving process.

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