Concept explainers
Aging population. The table shows the U S. population and the number of Americans over age 65 at 10-year intervals since 1940 (about when Security was created).
Year | 1940 | 1950 | 1960 | 1970 | 1980 | 1990 | 2000 | 2010 |
U.S. population |
(millions)
a. Make a table showing percent of the US population
over age 65 between 1940 and 2010.
b. What is the percentage increase in U.S. Population
between 1940 and 2010?
c. What is the percentage increase in over-65 population
between 1040 and
d- In 2010, there were approximately 165 million
Americans of working (25—05). Estimate (with
the number ofpeople who were actually working and
contributing to social security in 2010. Compare this
number to the over-65 population_
e How results affect the future ofprogram such as social security
and Medicare?
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Chapter 7 Solutions
Using and Understanding Mathematics: A Quantitative Reasoning Approach (6th Edition)
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