(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 25-39 age group.
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.
To Find:
To explain whether the answer to part (b) suggest that the number of people in the US population aged 25-39 is decreasing.
let
In 2015, 14.8% of the population was 65 or older.
By 2050, this percent is expected to be 20.9%. The percent of the population aged 25-39 in 2015 was 20.0%. That age group is expected to include 10.3% of the population in 2050.
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College Algebra (12th Edition)
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