Question

Assume that the world population at time t is given by P = Psub0 e^.054t.
How long will it take for the world population to double?

Answer 1

\[P = P _{0}e ^{.054t}\]

Answer 2

I don't know why it lost the format when I edited.

If the future population is double... that means it is twice Psub0.
Solve for t:
\[2P _{0}=P _{0}e ^{.054t}\]
Any questions?

Answer 3

So then I would just take ln of both sides, correct?

Answer 4

After dividing both sides by Psub0. It conveniently gets rid of it, leaving only t to solve for.

Answer 5

Alright, thank you very much!

Answer 6

You're welcome.