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6 July, 14:03

The length of a rectangular banner is 5 feet longer than its width. if the area is 84 square feet, find the dimensions.

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  1. 6 July, 14:36
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    Length = w+5

    A = l x w

    84 = w + 5 x w

    84 = w² + 5w

    w = - 12 or w = 7

    Since you can't have a negative length W=7

    Length = 7+5

    length = 12

    Width = 7
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