Makhi3836 Makhi3836

15-02-2019
Mathematics

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The width of a rectangle is two-thirds the length, the perimeter of the rectangle is 15. What is the length?

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OmegaAzzy OmegaAzzy

15-02-2019

W = 2/3l

15 = 2l + 2w

Because we have a value for w, we'll place it in the second equation.

15 = 2l + 2(2/3l)

15 = 2l + 4/3l

Multiply all terms by 3.

45 = 6l + 4l

Combine.

45 = 10l

Divide both sides by 10.

4.5 = l

The value of the length is 4.5.

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