Question 993293
The doubling period of a bacterial population is 20  minutes. At time t=90  minutes, the bacterial population was 50000.

 What was the initial population at time t=0 ?       

 Find the size of the bacterial population after 3 hours
*formula: p(t)=a(b)^t
**Note:b=1+r
<pre>r, or growth rate = .035264924 &#8776; 3.526%, per minute
Initial population at time = 0 minutes: 2,209.708691 &#8776; {{{highlight_green(2210)}}}
Population at time = 3 hours (180 minutes): 1,131,370.8499 &#8776; {{{highlight_green(1131371)}}}