SOLUTION: The outside dimension of rectangular flower bed including the pathway is 100cm by 136cm and the area excluding the pathway is 6400 cm squared.What is the uniform width of the path

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Question 1167020: The outside dimension of rectangular flower bed including the pathway is 100cm by 136cm and the area excluding the pathway is 6400 cm squared.What is the uniform width of the pathway and how wide is the pathway?
Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
u, the uniform width of the pathway surrounding flowerbed

Total Area, 100%2A136

Just the flowerbed, %28100-2u%29%28136-2u%29=6400
Simplify and solve for u.


---- A start

2%2A2%2A%2850-u%29%2868-u%29=6400=4%2A2%2A8%2A100
%2850-u%29%2868-u%29=1600
which might have a whole number solution, or might not; look for any two factors of 1600 which differ by 18.