the simpsons plan to put a walkway around their pool. the pool dimensions are 12 feet by 20 feet. if the area of the pool and walkway is 308 square feet, what are the dimensions of the walkway?
If the width is constant = w then we have
(12+2w)(20+2w) = 308 from which we find w = 1
There is a 1ft wide walkway running round the pool.
