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Mathematics 9 Online
OpenStudy (anonymous):

Bell County has a population of 25,199 in 1990 and a population of 22,707 in 2000. Land area in square miles is 2,532. Evan County has a population of 139,519 in 1990 and a population of 130,748 in 2000. Land area in square miles is 321. On average, how many people were there per square mile in Bell County in 2000? To the nearest percent, what was the percent decrease in Evan County's population from 1990 to 2000?

OpenStudy (cruffo):

In 2000 there was on average 22707/2532 or approx 9 people per square mile in Bell County. The change in Evan County's population from 1990 to 2000 is 139519 - 130748 = 8771. The percent decrease is 8771/139519 or approximately 6%.

OpenStudy (anonymous):

Thanks!

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