Question

A lap pool is going to be built that is 20 times long as it is wide. The builder has 150 feet of decorative tile to place along the perimeter of the pool. What are the dimensions of the pool?

Answer 1

Can't tell without knowing how wide the tiles are, since the border will have 4 corners. If the tiles have width w, then if the pool's width is x,

2(x+20x)+4w = 150