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The perimeter of a rectangular floor is 90 feet. Find the dimensions of the floor if the length is twice the width.


Answered 6 months ago
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First, we set up an equation using the perimeter formula,

P=2l+2w\begin{aligned} P = &2l+2w\\ \end{aligned}

where ll = length, ww = width, and PP = perimeter.

90=2l+2w(1)\begin{aligned} 90 = &2l+2w \quad \tag{1}\\ \end{aligned}

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