Question

An animal reserve has 20,000 elk. The population is increasing at a rate of 13% per year. How long will it take for the population to reach 60,000? If necessary, round your answer to the nearest tenth. The population will reach 60,000 in approximately years.

Answer 1

Approximately 15.4 years

I multiplied 20,000 by 0.13 and got 2,600. Then I subtracted 20,000 from 60,000 to get 40,000. Finally I did 40,000 / 2,600 and got 15.4