homework

The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of
3.9%
per hour. How many hours does it take for the size of the sample to double?

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1. What is the School Subject? If you want help with your homework, this question seems not to require a social studies or English tutor. Is this biology, math, or what is your subject?

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2. it will take t hours, where

1.039^t = 2

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3. and if you are unfamiliar with log equations, take the log of each side..
t*log1.039=log2
t= log(2)/log(1.030
log(2)/log(1.030) =
and it is about 23 hours...

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bobpursley

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