If a population has an annual growth rate of r percent, then

Last updated: 7/17/2022

If a population has an annual growth rate of r percent, then 70/r is a good estimate of the population's doubling time. Use this method to estimate the population's doubling time for a country with a growth rate of 0.932% in 2008. The estimate predicts that the country's population will double in years. (Round to the nearest whole number.