Thread: exponential

Please, can someone help me w/this?

A biologist finds that the population of a certain type of bacteria doubles each half-hour. An initial culture has 90 bacteria. How long will it take for the number of bacteria to reach 368,640?

Thank you.

Originally Posted by pexler

Please, can someone help me w/this?

A biologist finds that the population of a certain type of bacteria doubles each half-hour. An initial culture has 90 bacteria. How long will it take for the number of bacteria to reach 368,640?

Thank you.

Hi

Let n be the number of half-hours and q(n) the quantity of bacteria



q(n) = 368,640 for which gives n=12

It will take 6 hours