Thread: Area of a Rectangle
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Old July 3rd, 2009, 06:09 PM
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A = L \times W

where L = x, W = y

and we know 2x+y=240 so y= 240-2x

therefore A = x\times (240-2x)

5500 = x\times (240-2x)

5500 = 240x-2x^2

0 = 240x-2x^2-5500

now solve the quadratic
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