SOLUTION: A rectangular lot twice as long as it is wide is fenced along its outside with 252 feet of fencing. Which of the choices below represents its length?

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Question 871889: A rectangular lot twice as long as it is wide is fenced along its outside with 252 feet of fencing. Which of the choices below represents its length?

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
You did not show the choices but that is not too important. Here is the solution process, completely in symbols.

p is the perimeter, same as the fencing of 252 feet.
w = width
L = length
L=2w from description
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Goal is solve for L.
2w%2B2L=p
2%28L%2F2%29%2B2L=p
L%2B2L=p
3L=p
highlight%28L=p%2F3%29