hamichrit8009 hamichrit8009

22-09-2017
Mathematics

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The length of a rectangle is 3 inches less than 4 times the width. If the perimeter is 55 inches, what is the width of the rectangle?

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kritter1 kritter1

24-09-2017

length= 4x-3
width = x

P = 2(l+w)
55= 2(4x-3 +x)
55 = 2(5x-3)
27.5 = 5x-3
27.5+3 = 5x
30.5/5 = x
6.1=x

Width is 6.1 in, length (4 x 6.1 -3) = 21.4

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