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The formula for the perimeter of a rectangle is given by $P=2 l+2 w$, where $l$ is the length and $w$ is the width. Assume the perimeter of a rectangular plot of land is $480 \mathrm{ft}$. The length is twice the width. Find the length of the rectangular plot of land.
in Mathematics by Platinum (102k points) | 676 views

1 Answer

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$ l=160$


We are told that $P=480$ and $l =2w$

$ P =2l+2w$

$ \implies 480 =2(2w) +2w$

$ \implies 480 = 6w$

$ \implies w=80$

Hence $l=2(80)$

$ \implies l =160$
by Wooden Status (3.0k points)

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