SOLUTION: A rectangular sign must have an area of 23 square yards. its length must be 6 yards more than its width. find the dimensions of the sign?
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Question 1009425: A rectangular sign must have an area of 23 square yards. its length must be 6 yards more than its width. find the dimensions of the sign? Answer by ikleyn(52778) (Show Source):
Solve this quadratic equation for the unknown value of the width w
w*(w+6) = 23,
which is the same as
= .
Use the quadratic formula. You will get
= = = = .
The negative root doesn't fit the condition.
Hence, w = is the unique solution.