shayla5347 shayla5347

26-08-2018
Mathematics

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The formula for perimeter of a rectangle is P=2L+2W where L is the length and w is the width. A rectangle has a perimeter of 24 inches. Find its dimensions if its length is 4 inches greater than its width.

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aperson42 aperson42

27-08-2018

24=2(w+4)+2w=4w+8, subtract 8 from both sides 4w=16, w=4. L=w+4 so l is 8. The dimensions are 8 by 4.

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