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16 May, 23:41

The perimeter of a rectangle is 87 ft. The length is x ft and the width is 19 ft. What is the length of the rectangle, in feet? Write and solve an equation.

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  1. 17 May, 01:43
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    Perimeter is all sides added up.

    So, we know the width is 19ft and the length is x feet. We also know that the perimeter is 87 feet.

    What we can do is make an equation to solve for x.

    2x + 2 (19) = 87

    First, multiply 2 and 19.

    2 x 19 = 38

    2x + 38 = 87

    Next, subtract 38 from both sides to move 38.

    2x = 87 - 38

    2x = 49

    Lastly, divide both sides by 2 to get the value of x.

    x = 49/2

    x = 24.5

    Thus, the length of the rectangle is 24.5ft

    We can plug it into our equation to check if its correct.

    2 (24.5) + 2 (19) = 87

    24.5 x 2 = 49

    2 x 19 = 38

    49 + 38 = 87
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