Hi,

A landscaper wants to construct a walk of uniform width around a rectangular vegetable garden. 

The current dimensions are 24 ft by 40 ft. The concrete available will cover 660 sq ft. 

How wide should the walkway be constructed

The idea is to use the entire Area of the garden and walkway...

 (24+2x)(40+2x) =  

   (24+2x)(40+2x) = 1620ft^2

   (12+x)(20+x) = 405   ||solve for the positve x solution

 

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