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July 31, 2014

July 31, 2014

Posted by **Meghan** on Monday, August 1, 2011 at 7:30pm.

- Math -
**Damon**, Monday, August 1, 2011 at 7:36pmdx/dt = .17x

dx/x = .17 dt

ln x = .17t + C

x = e^(.17t+C) = e^C e^.17t

when t = 0

800 = e^C e^0 = e^C

so

x = 800 e^.17t

2000 = 800 e^.17t

2.5 = e^.17 t

ln 2.5 = .17 t

t = .916/.17 = 5.39 hr

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