SOLUTION: A particular rectangle is three times longer than it is wide and its perimeter is 20cm. What equation represents this situation? PLZ HELP

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Question 765480: A particular rectangle is three times longer than it is wide and its perimeter is 20cm. What equation represents this situation? PLZ HELP
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
"A particular rectangle is three times longer than it is wide" ---> Length = 3*Width ----> L = 3*W


Perimeter of Rectangle

P = 2L + 2W

20 = 2*(3W) + 2W

20 = 6W + 2W

is your equation. I'll let you solve from here.