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3.1 Ratios, Rates, and Proportional Relationships - Direct/inverse proportionality
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The population density of Cedar County is 230 people per square mile. The county has a population of 85,100 people. What is the area, in square miles, of Cedar County?

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The population density of Cedar County is 230 people per square mile. The county has a

Hard-difficulty · SAT Math · Ratios, Rates, and Proportional Relationships — Direct/inverse proportionality. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

The correct answer is 370 . It’s given that the population density of Cedar County is 230 people per square mile and the county has a population of 85,100 people. Based on the population density, it follows that the area of Cedar County is 85,100 people1 square mile230 people, or 370 square miles.