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A rectangular room is 1.3 times as long as it is wide, and its perimeter is 35 meters.

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1 Answer

The width of the rectangle is x, so the length is 1.3*x.  The perimeter is 2*width + 2*length.  The equation to solve then would be 2(1.3x) + 2(x) = 35 which is 2.6x + 2x = 35 which is 4.6x = 35 and solves to x = 7.6.  So the width is 7.6 meters and the length is 1.3(7.6) = 9.9 meters.