22-08-2017
Mathematics

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The length of a rectangle is 8 m more than 6 times the width. The perimeter is 156 m. Find width.

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22-08-2017

width = x
length = 6x + 8

x + 6x + 8 = 156/2
7x + 8 = 78
7x = 78 - 8
7x = 70
x = 70/7
x = 10 m ← width

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