SOLUTION: The length of a rectangle is six times its width. If the area of the rectangle is 600in squared , find its perimeter.

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Question 563839: The length of a rectangle is six times its width.
If the area of the rectangle is 600in squared , find its perimeter.

Answer by bluemockingjay7(41) About Me  (Show Source):
You can put this solution on YOUR website!
L = 6w
W = w
Area of the rectangle = lw
6w(w) = 600
6w^2 = 600
w^2 = 100
w = square root of 100
w = 10
L = 6(10) = 60in
W = 10in
Perimeter of a rectangle: 2(L + W)
P = 2(60 + 10)
P = 2(70)
P - 140in