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18-10-2017
Mathematics

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A rectangle's length is 5 units more than the width. the perimeter is 9 times the width. what are the length and the width of the rectangle described?

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19-10-2017

L=5+w
2(l+w)=9w
2l+2w=9w
2l=7w
2(5+w)=7w
10+2w=7w
10=5w
W=2, l=5+w=5+2=7

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