APES Unit 3 Populations Math Practice

Find the percent of change from 10 inches to 14 inches.

Find the percent of change from $52 to $125. Round your answer to the nearest whole percent.

What is the percent change: 234.98 to 324.77

Scientists are closely monitoring caribou populations to examine the effect of global climate change on habitat. The maximum population size for a herd of caribou based on the amount of habitat was 500,000 . A herd of caribou currently has a population size of 198,000 caribou as a result of habitat loss. Which of the following methods should be used to determine the percent change between the maximum population and the current population for this herd of caribou?

((Births-deaths)/Total population)(100)=

((Crude birth rate-crude death rate)/1000)(100)=

(Deaths/Total population)(1000)=

(Births/total population)(1000)=

(((births+immigration)-(deaths+emigration))/total population)(100)=

Calculate the growth rate of a population that has a CBR of 7 per 1,000 and a CDR of 9 per 1,000.

Calculate the growth rate of a population that has a CBR of 10 per 1,000 and a CDR of 2 per 1,000. Immigration is 5 per 1,000 and emigration is 7 per 1,000.

If a city with a population 10,000 experiences 100 births, 40 deaths, 10 immigrants, and 30 emigrants in the course of a year, what is its net annual percentage growth rate?

If a country has a crude birth rate of 24 per 1,000 and a crude death rate of 8 per 1,000, the natural annual percent increase of its population is

(70/% growth rate)=

In 2012, there were 20 births per 1,000 people and 5 deaths per 1,000 people in Peru. Calculate the approximate doubling time of Peru's populaiton.

The town of Fremont has a population of 2,000. In 2019, the town has 50 deaths, 20 immigrants, and 30 emigrants. The town's population growth rate is 4.5%. Calculate the approximate doubling time of Fremont.