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06-12-2019
Mathematics

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The length of a rectangle is 4 times it’s width . It’s perimeter is 90 m . Find it’s dimensions .use p

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LukyChoose LukyChoose

06-12-2019

Answer:

w = 9

l = 36

Step-by-step explanation:

P = 90

l = 4w

P=2(l+w)

90 = 2(4w+w)

90 = 10w

w = 9

90 = 2(l+9)

90 = 2l + 18

72 = 2l

l = 36

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