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A culture of 10 bacteria is started and the number of bacteria will double every hour in about how many hours will there be 3000000 bacteria?
Wiki User
∙ 10y ago
After t hours the number of bacteria is 10*2t.
So 10*2t > 3000000
=> 2t > 300000
=> t(log2) > log(300000)
=> t > log(300000)/(log2)
=> t > 18.19..
So in just over 18 hours (or 18 hours and 12 minutes, approx).
Wiki User
∙ 10y ago
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