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(a)
To Find:
To write a linear equation, assuming the population changes are linear, use the data for 65-or-older age group.
Then to do the same for the 25-34 age group.
(b)
To find:
To solve the system of linear equations from part (a) and the year the two age groups include the same percent of the population. Also to find the percent.
(c)
To Find:
To explain whether the answer to part (b) suggest that the number of people in the US population aged 25-34 is decreasing.
let
In 2010, 13% of the population was 65 or older.
By 2050, this percent is expected to be 20.2%. The percent of the population aged 25-34 in 2010 was 13.5%. That age group is expected to include 12.8% of the population in 2050.
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Chapter 5 Solutions
Essentials of College Algebra with MyMathLab Pearson eText Access Card
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