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Math Help - How Many Bacteria After 20 Hours?

  1. #1
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    How Many Bacteria After 20 Hours?

    Certain bacteria can double in number in 1 hour. If we start with 1 bacterium, how many bacteria will there be after 20 hours?
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    Quote Originally Posted by fdrhs1984 View Post
    Certain bacteria can double in number in 1 hour. If we start with 1 bacterium, how many bacteria will there be after 20 hours?
    Time in hours,

    At time 0, there is 1 bacterium
    At time 1, there are 2 bacteria
    At time 2, there are 2*2 = 2^2 bacteria
    At time 3, there are 2^3 bacteria
    etc.
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  3. #3
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    Must I continue this pattern and stop at 20?
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  4. #4
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    yes. actually its just one step. at time 20,there will be 2^20 bacteria. (2^x where x is the amt of time)
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    I got it now. Thanks!
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