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The bacteria in a jar triple every 20 seconds. After three minutes, there are 275,562 bacteria in the jar. How many were in the jar at the beginning of the experiment?

 Sep 16, 2021
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In three minutes there are 9 sets of 20 seconds

  so the original colony triples 9 times

    x 39 = 275562

x = 275562 / 39

x = 14  original bacteria

 Sep 17, 2021

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