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If the width of a rectangle is 4 feet less than the length and the area is 320 feet squared what is the width of the rectangle?
Wiki User
∙ 13y ago
20 feet long by 16 feet wide
Let the width be x-4 and the length be x:
(x-4)*x = 320
x2-4x-320 = 0
Solving the above quadratic equation works out as:
x = -16 or x = 20 so it must be the latter because dimensions can't be negative.
Answer: width = 16 feet
Wiki User
∙ 13y ago
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