Question

Suppose that there are 150,000,000 people in Yourtown. And, suppose that Yourtown uses 310 × 109cubic meters of water per year. What is the amount of water (in cubic meters) used per person each year in Yourtown?

Answer 1

Given:

The number of people = 150,000,000.

The amount of water used in town = 310 × 109 cubic meters.

Required:

We need to find the amount of water (in cubic meters) used per person each year.

Explanation:

$The\text{ amount of water used per person =}\frac{The\text{ amount of water used}}{The\text{ number of people}}$

Substitute the number of people = 150,000,000 and the amount of water used in town = 310 × 109 cubic meters in the equation.

$The\text{ amount of water used per person =}\frac{310\times109}{150000000}$

$The\text{ amount of water used per person =}\frac{33790}{150000000}$

$The\text{ amount of water used per person =}\frac{3379}{15000000}$$The\text{ amount of water used per person =}0.000225267\text{ cubic meters}$

Final answer:

$The\text{ amount of water used per person =}0.000225267\text{ cubic meters}$