Chlaine
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A culture is grown with a population of 45 million cells. The cell population is found to double every hour. What will the population be after four hours?

Verified Answer :

45 million  \(2^{4}\) = 45million  16 = 720million

Or you can use 
\(y=Ae^{kt}\)
A is equal to 45 million
To find the rate, k, we can plug in:
\(90million=45million*e^{k*1}\)
\(2=e^{k}\)
\(k=ln(2)\)
\(y=4.5*10^{7}*e^{t *ln2}\)
Knowing that t = 4
\(y = 4.5*10^{7}*e^{ln(2)*4}\)
\(y = 720 million\)

The population will be 360 million people after four hours

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