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January 28, 2015

January 28, 2015

Posted by **Alex** on Sunday, July 24, 2011 at 2:06pm.

Any help would be great, the book doesn't give any examples of this type of problem.

- Calculus -
**Damon**, Sunday, July 24, 2011 at 5:27pmdn/dt = .05 n

dn/n = . 05 dt

ln n = .05 t + k

n = e^(.05 t+k) = e^k * e^.05 t = C e^.05 t

dn/dt = C(.05) e^.05t

when t = 0 dn/dt = 4000

so

4000 = .05 C (1)

C = 80,000

so

n = 80,000 e^.05 t

at t = 5, n = 80,000 e^.25

or

n = 102,722 units

102722 * 850 = 87,313,728.33

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