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The perimeter of a rectangle is 34 units. Its width W is 6.5 units. Write an equation to represent the perimeter in terms of the length L, and find the value of L.

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asked Feb 21, 2015 95.3k views

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The perimeter of a rectangle is 34 units. Its width W is 6.5 units.

Write an equation to represent the perimeter in terms of the length L, and find the value of L.

Mathematics
high-school

Mahesh Kumaran asked

by Mahesh Kumaran

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$P=2L+2W\\\\34=2L+2\cdot6.5\\\\34=2L+13\ \ \ \ \ \ \ |subtract\ 13\\\\34-13=2L\\\\2L=21\ \ \ \ \ \ \ |:2\\\\L=10.5\\\\The\ length\ is\ 10.5\ units$

Zahirabbas answered Feb 26, 2015

by Zahirabbas

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The perimeter of a rectangle is 34 units. Its width W is 6.5 units. Write an equation to represent the perimeter in terms of the length L, and find the value of L.

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