SOLUTION: A man built a walk of uniform width around a rectangular pool. If the area of the walk is 245 square feet and the dimensions of the pool are 15 feet by 13 feet, how wide is the wal

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: A man built a walk of uniform width around a rectangular pool. If the area of the walk is 245 square feet and the dimensions of the pool are 15 feet by 13 feet, how wide is the wal      Log On


   

Question 900631: A man built a walk of uniform width around a rectangular pool. If the area of the walk is 245 square feet and the dimensions of the pool are 15 feet by 13 feet, how wide is the walk?
Answer by josgarithmetic(39614) About Me  (Show Source):
You can put this solution on YOUR website!
Let w = the uniform width around pool.

Total Area pool and walkway, %282w%2B15%29%282w%2B13%29
Area just the pool, 15%2A13
TotalArea-PoolArea=WalkwayArea=245

highlight_green%28%282w%2B15%29%282w%2B13%29-15%2A13=245%29
You should be able to handle the rest of the process.



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w=7%2F2=3%261%2F2 feet