Chapter 9.1, Problem 28DE

Practical Applications. Round to the nearest tenth unless otherwise directed.

Landscaping A rectangular pool measuring 200 in. by 400 in. has a leak that causes the pool to lose $2\frac{3}{8}$ in. of water depth per day.

1. (a) How many cubic inches of water are lost per day?
2. (b) How many cubic feet of water are lost per day?

   (Hint: 1 cu ft = 1728 cu in.) (Round to the nearest cubic foot.)

3. (c) The local water district charges $4.15 per HCF (hundred cubic feet). If the leak is not fixed and the lost water is replaced, how much will this add to the resident’s monthly water bill? (Assume a 31-day month.)