29-11-2016
Mathematics

contestada

a rectangle has a perimeter of 84cm and a length of 30. what is its width?

Respuesta :

texaschic101 texaschic101

29-11-2016

P = 2(L + W)
P = 84
L = 30

84 = 2(30 + W)
84 = 60 + 2W
84 - 60 = 2W
24 = 2W
24/2 = W
12 = W....width is 12 cm

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