SOLUTION: A rectangle has a width of X and a length that is triple that what is the perimeter of the rectangle?

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Question 1072804: A rectangle has a width of X and a length that is triple that what is the perimeter of the rectangle?
Answer by math_helper(2461) About Me  (Show Source):
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A rectangle has a width of X and a length that is triple that what is the perimeter of the rectangle?
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Let
W=width
L=length
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The perimeter, P, of a rectangle is: P=2L+2W
In this problem we are given L=3W=3X so just substitute "3X" for "L" in the perimeter formula:
P = 2L + 2W
Making the substitutions L=3X and W=X:
P = 2(3X) + 2(X)
P = 6X + 2X = 8X
+highlight%28P+=+8X%29 and that's about as far as you can take it with the information provided.