the perimeter of a rectangular garden used 86 feet of barbed wire. The length of the garden is 7 feet more than its width. Find the dimensio

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the perimeter of a rectangular garden used 86 feet of barbed wire. The length of the garden is 7 feet more than its width. Find the dimensions of the garden.

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  1. Answer:

    Step-by-step explanation:

    perimeter of a rectangle  = twice the length  plus  twice the width

    P = 2L + 2W    equation 1      P = 86 ft

    Given the length is seven feet more than the width

    L = W + 7         equation 2

    Substitute equation 2 into equation 1

    P = 2(W+7) + 2W    =  86 ft

         2W +14 + 2W    =  86 ft

         4W    =  86  – 14

            W   =  72 / 4

            W   =  18 feet

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