SOLUTION: What is the perimeter of rectangle if side ratio is 7 to one, with an area of 175 square feet

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Question 1027781: What is the perimeter of rectangle if side ratio is 7 to one, with an area of 175 square feet
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
width = w
length = 7w

(w)(7w) = 175
7w^2 = 175
w^2 = 25
w = -5 or 5

distance can't be negative --> w = 5

perimeter = 2w + 2(7w) = 16w = 80 ft