How many people in the us were 80 years old

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Reference no: EM131889713

The population of the U.S. in 2010 was about 309,000,000. Approximately 5.2% of the U.S. population in 2010 consisted of people 80 years old or older.

a) Approximately how many people in the U.S. were 80 years old or older in 2010

b) answer to part (a) in scientific notation.

Reference no: EM131889713

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