SOLUTION: What could be an expression for the perimeter of a rectangle that's length is three times its width?

SOLUTION: What could be an expression for the perimeter of a rectangle that's length is three times its width?

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Question 892480: What could be an expression for the perimeter of a rectangle that's length is three times its width?
Answer by algebrahouse.com(1659) (Show Source): You can put this solution on YOUR website!
w = width
3w = length

Perimeter = 2(width) + 2(length)

Perimeter = 2(w) + 2(3w) {substituted w for width and 3w for length}
= 2w + 6w {multiplied}
= 8w

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