alexhanneken alexhanneken

01-10-2016
Mathematics

contestada

The length of a rectangular mailing label is
4 centimeters less than twice the width. The perimeter is
22 centimeters

Respuesta :

texaschic101 texaschic101

01-10-2016

P = 2(L + W)
P = 22
L = 2W - 4

22 = 2(2W - 4 + W)
22 = 2(3W - 4)
22 = 6W - 8
22 + 8 = 6W
30 = 6W
30/6 = W
5 = W.....width is 5 cm

L = 2W - 4
L = 2(5) - 4
L = 10 - 4
L = 6....length is 6 cm

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