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08-02-2015
Mathematics

contestada

The length of a rectangle is five more than the width. The perimeter is 170. Find the length and width. Write equation and solve.

Respuesta :

08-02-2015

170=2l+2w
l=w+5
w=l-5
170=2l+2(l-5)
170=2l+2l-10
180=4l
l=45
w=40

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