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Write a formula for the length l of a rectangle given its perimeter P and its width w. Justify your thinking.

Write a formula for the length l of a rectangle given its perimeter P and its width w. Justify your thinking.
asked 39.4k views
3 votes
Write a formula for the length l of a rectangle given its perimeter P and its width w. Justify your thinking.

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User Will Sewell
by
7.8k points

1 Answer

3 votes
P = 2l + 2w |subtract 2w from both sides

2l = P - 2w |divide both sides by 2

l = (P - 2w)/2

answered
User SuperManEver
by
8.1k points
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