Question

A physical therapy faality is building a new pool that is 60 feet long and 5 feet deep. they have ordered enough tile for a 220foot-long border around the edge. how wide should the pool be to ensure that all tiles are used?

1. The pool should be 50 feet wide.
In the question, we are given that a physical therapy facility is building a new pool that is 60 feet long and 5 feet deep. they have ordered enough tile for a 220 foot-long border around the edge.
We are asked for the width of the pool, that ensures that all tiles are used.
We assume the width to be x foot, that is, the pool is x-feet wide.
The border is around the edge of the pool, that is, it will cover the perimeter of the face of the pool.
It is in the shape of a rectangle.
The perimeter of a rectangle is given by the formula, 2(length + width).
The length is given t be 60 feet, and the width is assumes to be x-feet.
The perimeter will be fully  covered by the 220-feet long border, that is, the perimeter = 220 feet.
Putting in all the value of the perimeter, and equating to 220, gives an equation:
2(60 + x) = 220,
or, 60 + x = 220/2,
or, 60 + x = 110,
or, x = 110 – 60 = 50.
Thus, the pool should be 50 feet wide.