SOLUTION: The width of a rectangle is 8cm less than its length. The perimeter is 44cm. Find the dimensions of the rectangle. I have the answer that length = 15cm and width = 7cm. I am

Question 311368: The width of a rectangle is 8cm less than its length. The perimeter is 44cm. Find the dimensions of the rectangle.
I have the answer that length = 15cm and width = 7cm. I am asking for the formula to how this question was worked out. This is an example question for a placement test for my college. I know they will change the numbers, but the formula stays the same. Please help?
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
p=2(l+w)
p=44
w=l-8

w=15-8=7
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