SOLUTION: The report, “The Older Population: 2010” also indicates that in 1900 approximately 4% of the U.S. population was made up of individuals who were 65 years or older, while in 201

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Question 1134231: The report, “The Older Population: 2010” also indicates that in 1900 approximately 4% of the U.S. population was made up of individuals who were 65 years or older, while in 2010 this same age group made up about 13% of the population.
The proportion of the U.S. population that is 65 years or older increased by _____ percentage points from 1900 to 2010.
The proportion of the U.S. population that is 65 years or older increased by _____% from 1900 to 2010.

Answer by Glaviolette(140) About Me  (Show Source):
You can put this solution on YOUR website!
For the first question, it increased by 9 percentage points.
For the second question, we want to know what percent of 4 is 13. I solved it as an equation and as a proportion.