Respuesta :
Answer:
42
Step-by-step explanation: formula 40 X 30 = 1200 then  50,000 divided by 1200.
   Average number of people living on each square mile is 42.
   Option (1) will be the answer.
Population density:
- Â Population density is defined by the number of people living on one square mile of a particular area.
     Population density = [tex]\frac{\text{Total number of people}}{\text{Area of the land}}[/tex]
Given in the question,
- A county is in a rectangular shape with dimensions 40 miles by 30 miles.
- Total population of the county = 50000
Area of the county = Length × Width
                = 40 × 30
                = 1200 square miles
Total population of the county = 50000
Population density = [tex]\frac{50000}{1200}[/tex]
                = 41.67
                ≈ 42
 Therefore, average number of people living on each square mile is 42.
           Option (1) will be the answer.
Learn more about the population density here,
https://brainly.com/question/16267176?referrer=searchResults