SOLUTION: jackie mows a uniform width around her 30m by 20m rectangular lawn and leaves a patch of lawn that is 60% of the original area what is the width of the strip

Question 697179: jackie mows a uniform width around her 30m by 20m rectangular lawn and leaves a patch of lawn that is 60% of the original area what is the width of the strip
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The original area is m^2
The area of patch left is
Let = the uniform width of mowed part
The unmowed patch is by

Use quadratic formula

The width of the strip is 2.6893 m
check answer:

close enough

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