SOLUTION: how long will it take for the population of a certain country to double if its annual growth rate is 3.3%? round to the nearest year.
i got 21 and 9 years
my freind got 6
Algebra ->
Functions
-> SOLUTION: how long will it take for the population of a certain country to double if its annual growth rate is 3.3%? round to the nearest year.
i got 21 and 9 years
my freind got 6
Log On
Question 241258: how long will it take for the population of a certain country to double if its annual growth rate is 3.3%? round to the nearest year.
i got 21 and 9 years
my freind got 61 and 1
which is correct? :) Found 2 solutions by stanbon, rfer:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! how long will it take for the population of a certain country to double if its annual growth rate is 3.3%? round to the nearest year.
---------------------------------
2P = Pe^(rt)
e^(0.033t) = 2
Take the natural log:
0.033t = 0.693147...
t = 21.0 years