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If a rectangle has a perimeter of 70, a length of x and a width of x-9, find the value of the length of the rectangle
A.22
B.4
C.13
D.31

Respuesta :

mathstudent55

Answer:

A. 22

Step-by-step explanation:

perimeter = length + length + width + width

P = L + L + W + W

P = 2L + 2W

70 = 2x + 2(x - 9)

70 = 2x + 2x - 18

88 = 4x

x = 88/4

x = 22

Answer: A. 22

thebibleteller626

Answer:

The answer is A. 22

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