Question

A physical therapy facility is building a new pool that is 60 ft long and 4ft deep. They have ordered enough tile for a 220-foot long border around the edge. How wide should the pool be to ensure that all the tiles are used?

Answer 1

Explanation:

The amount of tile needed is proportional to the perimeter of the pool. If we let w be the width of the pool, then the perimeter of the pool is P = 2w + 60. The amount of tile needed is 220 feet, so we can write:

220 = 2w + 60

Solving for w, we get:

w = (220 - 60)/2 = 80

Therefore, the width of the pool should be 80 feet to ensure that all the tiles are used.