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5 December, 20:58

A flat rectangular piece of aluminum has a perimeter of 58 inches. The length is 5 inches longer than the width. Find the width.

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  1. 5 December, 21:18
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    The formula for perimeter is 2L + 2W.

    Since we know that L=5+W, we can substitute this into the equation.

    2 (5+W) + 2W=58

    10+2W+2W=58

    4W + 10=58

    4W=48

    W=12

    Therefore, the width is 12 inches.
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