SOLUTION: The length of a rectangle is 8 more than the width. If the width is 5x-4, find the perimeter in terms of x.

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Question 468545: The length of a rectangle is 8 more than the width. If the width is 5x-4, find the perimeter in terms of x.
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
If the width of a rectangle is 5x-4, then the length is %285x-4%29%2B8=5x%2B4
The perimeter of a rectangle is P=2%28l%2Bw%29, when l is length, w is width of a rectangle
P=2%285x-4%2B5x%2B4%29=20x
Answer: 20x