# Algebra

The length of a room is 4 times longer than it's width.its area is 36m2.Find the dimensions of the room .

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1. width --- x
length --- 4x

area = x(4x) = 36
4x^2 = 36
x^2 = 9
x = 3

the room is 3 m by 12 m

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posted by Reiny

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