lorriegoodman5041 lorriegoodman5041

10-05-2018
Mathematics

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The length of a rectangle is five times its width. if the area of the rectangle is 320 m2 , find its perimeter. m

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wolf1728 wolf1728

10-05-2018

A) L = 5 * W
B) L * W = 320

Substituting A) into B)
B) 5 * W * W = 320
5W^2 = 320
W^2 = 64
Width = 8
Length = 40

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