application of calculus question (1 Viewer)

[pasta8]

how do you do this question

A population in a certain city is growing at a rate proportional to the population itself. After 3 years the population increases by 20%. How long will it take for the population to double?

 

[P.T.F.E]

6/5Po=Poe^k3

then find k
after k is found then do

2Po=Poe^kt (knowing what k is) find t

 

[P.T.F.E]

k=0.06
to double t=11.5years

 

[pasta8]

thanks i understand now before i made k=0.2

btw=11.4