The population density is 73.54 people per square kilometer
Solution:
Given that,
Area of europe = [tex]9.94 \times 10^6[/tex] square kilometers
Population = [tex]7.31 \times 10^8[/tex]
To find: population density
The formula for population density is given as:
[tex]\text{ population density } = \frac{\text{ number of people }}{\text{ land area }}[/tex]
Substituting the values in formula, we get
[tex]\text{Population density } = \frac{7.31 \times 10^8}{9.94 \times 10^6}\\\\\text{ use the law of exponent } \frac{a^m}{a^n} = a^{m-n}\\\\\text{Population density } = 0.7354 \times 10^{8-6}\\\\\text{Population density } = 0.7354 \times 10^2\\\\\text{Population density } = 73.541[/tex]
On rounding to nearest hundreth (two decimal places ), we get 73.54
Thus the population density is 73.54 people per square kilometer