jonescatherine1 jonescatherine1

29-07-2017
Mathematics

contestada

The perimeter of a rectangle is given by P equals 2 l plus 2 w. Find the width of a rectangle whose length is 35 and perimeter is 84 in.

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Banabanana Banabanana

29-07-2017

2l + 2w = P
l = 35, P = 84, w=?

2*35 + 2*w = 84
70 + 2w = 84
2w = 84 - 70
2w = 14
w = 14/2
w = 7 in

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