SOLUTION: A culture of cells is growing exponentially. The number of cells at 8 A.M. is 25 and the doubling time is 15 minutes. (b) When will there be 750 cells present? (Give your answer

Question 896427: A culture of cells is growing exponentially. The number of cells at 8 A.M. is 25 and the doubling time is 15 minutes.
(b) When will there be 750 cells present? (Give your answer correct to two decimal places.)

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
S=t*(1 - r^n)/(1 - r)
750=25*(1 - 2^n)/(1 - 2)
n is almost 5
n = 4.95
0 0 25
1 15 50
2 30 100
3 45 200
4 60 400
4.95 74.25 750
5 75 800

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