SOLUTION: How do I figure out this word problem, showing a bar model. A park is 4 times as long as it is wide. If the distance around the park is 12.5 kilometers, what is the area of the

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Question 802572: How do I figure out this word problem, showing a bar model.
A park is 4 times as long as it is wide. If the distance around the park is 12.5 kilometers, what is the area of the park?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
What is "bar model"?

The exercise is a common rectangle problem. Let L = length and let w = width.
Translating the description gives L=4w, and 2w%2B2L=12.5.

Substitute for L, since you have a formula for it from the description.
2w%2B2%284w%29=12.5, and solve for w first.

2w%2B8w=12.5
10w=12.5
w=%281%2F10%2912.5
highlight%28w=1.25=1%261%2F4%29

highlight%28L=4%281.25%29=5%29