Math - Algebra

In a thin rectangular tin sheet 8x12 sheet, you have to cut a rectangular opening. The area of the opening has to be 45 feet, and its edges have to have an equal distance from the edges of the sheet. Determine this distance.

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asked by Demi
  1. if the distance from the edges is x,

    (8-2x)(12-2x) = 45
    x = 3/2

    So, the hole is 5x9 with area 45

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    posted by Steve

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