SOLUTION: Perimeter of rectangle is 90 length is 6x and width is 2x. What is the length of the longest side

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Question 551327: Perimeter of rectangle is 90 length is 6x and width is 2x. What is the length of the longest side
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
For a rectangle, the perimeter, P, is given by:
P+=+2%28L%2BW%29 Substitute L+=+6x, W+=+2x, and P+=+90
90+=+2%286x%2B2x%29 Simplify.
90+=+16x
x+=+5.26
The longest side is 6x, so...
6x+=+33.75