Mathematical Practices
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How many more people were there in 2010 than in 2000? Pretend like the same number of people were added each year.
3 million people per year
310-280&=30 million people 2010-2000&=10 years We want to know the annual rate of change. This means that we need to know the average number of people added per year. We can use division to find this. 30÷10=3 million people per year On average, 3 million people were added per year to the population of the United States.