SeKacreadd SeKacreadd

23-09-2016
Mathematics

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a rectangle has a perimeter of 84cm and a length 35cm what is its width

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texaschic101 texaschic101

23-09-2016

P = 2(L + W)
P = 84
L = 35

now we sub
84 = 2(35 + W)
84 = 70 + 2W
84 - 70 = 2W
14 = 2W
14/2 = W
7 = W....so the width is 7 cm

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