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Math Help - Word Problem with Rectangles

  1. #1
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    Word Problem with Rectangles

    1) You have 100 yards of fencing with which to construct two adjacent and congruent rectangular pens. They will share one side.
    -I was able to get up to forming the equation A(h)=h((100-3h)/(2)) but I am not sure how to continue the problem after that.

    Any help with this problem will be much appreciated.

    -M
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  2. #2
    Eater of Worlds
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    You can set it up in different ways

    4x+3y=100...........[1]

    2xy=A.............[2]

    Solve [1] for y and sub into [2], differentiate, set to 0 and solve for x.
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