Problema Solution

A biologist finds that the population of a certain type of bacteria doubles each half-hour. An initial culture has 80 bacteria.

How long will it take for the number of bacteria to reach 81,920?

Answer provided by our tutors

A = P (2^n) 


For this problem: 


81,920 = 80(2^n)


81,920/80 = 2^n


1024 = 2^n


2^10 = 2^n


Then, n = 10 answer