Marianne wants to build a walkway around her rectangular garden. The width of her garden is one-third the length. The perimeter of Marianne’s garden is 40 feet. What is the length and width of her garden?

asked Aug 3, 2016 177k views

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$w=(1)/(3)l\\P=2l+2w=40\\l+w=20\\l+((1)/(3)l)=20\\(4)/(3)l=20\\l=15\\\\w=(1)/(3)(15)\\2=5$

Length = 15
Width = 5

Kemal answered Aug 7, 2016

by Kemal

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