Question

In 2000, the U.S. population was 281 million people. In 2008, it was 305 million. What was the rate of population change per year?

Answer 1

The rate of change is a measure used to describe how one quantity changes over a period of time. To calculate the rate of change, we use the expression as follows:

Rate of population change = change in population / time
Rate of population change = 305,000,000 - 281,000,000 / 8 years
Rate of population change = 3000000 per year