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28 August, 09:06

The population of a bacteria culture doubles in number every 12 minutes. the ratio of the number of bacteria at the end of 1 hour to the number of bacteria at the beginning of the hour is? ... ?

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  1. 28 August, 09:11
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    Let's say the number of bacteria you initially have is "a." The number of bacteria doubles every twelve minutes, which means that it doubles 5 times in an hour. You have (2) (2) (2) (2) (2) a=a∗2^5=32a at the end of the hour. You started out with only a. This means your ratio is 32a/a = 32.
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