- 61

- 0

**1. Homework Statement**

Bottled water consumption was reported to be 21 gal per person in the United States in 2002. The last census reported 2.9 x 10^8 people in the U.S.

A. What is the total estimated bottled water consumption in the U.S.?

B. If the per capita consumption of bottled water has increased 20% in the last 10 years, what was the per capita consumption 10 years ago?

**3. The Attempt at a Solution**

A. 290,000,000 (or 2.9x10^8) x 21 gal = 6,090,000,000 (or 6.09x10^9)

B. 20% of 21 gallons is 4.2 gallons. Do I add or subtract that from the 21 gal? How do I figure what the per capita consumption was 10 years ago?