SOLUTION: In a bacteria strain, the number of bacteria doubles every 20 minutes. There were 8 bacteria to start with. How many bacteria will there be after 3 hours?

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Question 1117883: In a bacteria strain, the number of bacteria doubles every 20 minutes. There were 8 bacteria to start with. How many bacteria will there be after 3 hours?
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
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There are nine 20 minutes time intervals in 3 hours.


Therefore, the number of bacteria doubles 9 times, and the final number is  8%2A2%5E9 = 2%5E12 = 4096.