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    #1

    Apr 26, 2007, 02:39 PM
    Algebra 1
    I need to know how to set this problem up:

    The foundation of a house is 13m by 7m. If the builder increases each dimensions by the same amount, the area will increase to 135sq m. Find the new dimension.
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    Capuchin Posts: 5,255, Reputation: 656
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    #2

    Apr 26, 2007, 02:45 PM
    okay so he's increasing both dimensions by x

    to start with you have 13*7

    to end with you have (13+x)*(7+x) = 135

    now you can multiply out, rearrange, solve for x, then work out the new dimensions.
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