The population of the world was 5.7 billion in 1995, and the observed relative growth rate was 2% per year. By what years will the population double and triple?

Question

anonymous · Answer

@swissgirl The population of the world was 5.7 billion in 1995, and the observed relative growth rate was 2% per year. By what years will the population double and triple?

anonymous · Answer

just take 2% of 5.7 bil and then add that to 5.7 and take 2% from that and repeat till you get your answer

anonymous · Answer

i have to use exponential equation

anonymous · Answer

@H_man exponentials

anonymous · Answer

@Hoslos u know how to do ths

anonymous · Answer

anybidy know how to do it

anonymous · Answer

You can use geometrical progression formula that is nth term=ar^n-1, where n is the required term in progression, a is the original value and r is the ratio, in your case percentage.