The length 18

The length of a rectangle is three times its width. Suppose the perimeter is 96 cm. Calculate the width of the rectangle.

Correct answer:

w =  12 cm

Step-by-step explanation:

l=3w p=96 cm  p=2w+2l p/2 = w+l  p/2 = w+3w = 4w p = 8w  w=p/8=96/8=12=12 cm   Verifying Solution:  l=3 w=3 12=36 cm P=2 (w+l)=2 (12+36)=96 cm p=P



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