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09-11-2019
Mathematics

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The perimeter of a rectangle is 20 inches. If its length is three times its width, find the dimensions.

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Аноним Аноним

09-11-2019

Answer:

l=7.5, w=2.5

Step-by-step explanation:

ok length=3w

width=w

therefore, 2(3w+w)=20

6w+2w=20

8w=20

w=20/8

w=2.5

therefore, width=2.5, length=7.5

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