the population density of peru one year was approximately 23 people per square kilometer. brazil has a land…

the population density of peru one year was approximately 23 people per square kilometer. brazil has a land area of approximately 8.5 million square kilometers. if brazil had the same population density as peru that year, approximately how many people were living in brazil?\n370,000 people\n2,700,000 people\n31,500,000 people\n195,500,000 people

the population density of peru one year was approximately 23 people per square kilometer. brazil has a land area of approximately 8.5 million square kilometers. if brazil had the same population density as peru that year, approximately how many people were living in brazil?\n370,000 people\n2,700,000 people\n31,500,000 people\n195,500,000 people

Answer

Explanation:

Step1: Convert land - area to standard units

The land area of Brazil is 8.5 million square kilometers. Since 1 million = 1000000, the land area $A = 8.5\times10^{6}$ square kilometers.

Step2: Use the population - density formula

The population - density formula is $D=\frac{P}{A}$, where $D$ is population density, $P$ is population, and $A$ is area. We know $D = 23$ people per square kilometer and $A=8.5\times 10^{6}$ square kilometers. Rearranging the formula for $P$ gives $P = D\times A$.

Step3: Calculate the population

Substitute $D = 23$ and $A = 8.5\times10^{6}$ into the formula: $P=23\times8.5\times10^{6}$. First, calculate $23\times8.5 = 195.5$. Then $P = 195.5\times10^{6}=195500000$ people.

Answer:

195,500,000 people