SOLUTION: The length of a rectangle is twice it's width. The perimeter is 30. What are it's dimensions?

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Question 775413: The length of a rectangle is twice it's width. The perimeter is 30. What are it's dimensions?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Width = x
Length = 2x
Perimeter = 2*Length + 2*Width
30 = 2*2x + 2*x
30 = 4x + 2x
6x = 30
x = 5
Width = 5 units
Length = 10 units
Hope this helps.
:-)