2. A country has a doubling time for its people of 20 years. If it ends up with 80 million people after 60 years, how many people did it have to start with (in this questions)?

2 answers

in 60 years, it has doubled three times, giving 8 times the original population.

So, what is 1/8 of 80?
10
Similar Questions
  1. Complete the following tableGrowth rate is k, Doubling time is T Population Growth Rate Doubling time Country A 1.3% yr ? years
    1. answers icon 1 answer
  2. The population of a certain country grows according to the formulaN=N0e^kt where N is the number of people(in millions) after t
    1. answers icon 1 answer
    1. answers icon 3 answers
  3. Complete the following tableCountry A 1.3% per year, T doubling time Country B 50 years, % per year
    1. answers icon 1 answer
more similar questions