Help please!!

The perimeter of a rectangle is 168 ft. The ratio of the length to the width is 11:1. Find the width of the rectangle.

A.
7 ft
B.
12 ft
C.
14 ft
D.
77 ft

Respuesta :

12 pieces in total so (168/2):12=7
the width is either 7, either 7*11=77
The perimeter of a rectangle is 168 ft. The ratio of the length to the width is 11:1. You are asked to find the width of the rectangle.
L/W = 11
L = 11W
P = 2L + 2W
168 = 2(11W) + 2W
168 = 24W
W = 7 ft

The answer is letter A.
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