SOLUTION: The length l of each side of a square is decreased by 2 and a half units. The perimeter of the square with the new side lengths is 66 units. What was the original side length?

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Question 871549: The length l of each side of a square is decreased by 2 and a half units. The perimeter of the square with the new side lengths is 66 units.
What was the original side length?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

 P = 4(L + 2.5) = 66     Perimeter is the Distance ALL the way around the new Square

      4L + 10 = 66

          4L = 56

           L = 14 units, the original side length