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Chapter 3: Q. 118 (page 334)

In 10 years, the population of Detroit fell from 950,000 to about 712,500. Find the percent decrease.

Short Answer

Expert verified

The percent decrease in the population will be 25% in 10 years.

Step by step solution

01

Step. 1 Given Information

10 years ago, the population of Detroit was 950,000.

Now at present the population reduces to 712,500.

02

Step. 2 Percentage calculation

The change in the population in 10 years is 950,000 - 712,500 = 237,500

So, the percent change in the population in 10 years will be calculated as follows:

=ChangeinpopulationPopulation10yearsago×100%=-237,500950,000×100%=-0.25×100%=-25%

This negative sign shows that the change is negative and it is percent decrease.

Therefore, 25% will be the percent decrease.

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