sarahbear21 sarahbear21

16-12-2014
Mathematics

Answered

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.

Answer :

17-12-2014

[tex]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[/tex]

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