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August 30, 2015
Posted by **Sheila** on Monday, November 21, 2011 at 5:33pm.

Would it be something like this:

7000=3000*(1+0.078)/? not sure about what to divided by???

Help-I'm really confused!!!!

- Algebra II -
**Damon**, Monday, November 21, 2011 at 5:53pmdx/dt =.078 x

dx/x = .078 dt

ln x = .078 t

x =X e^(.078 t)

7000 = 3500 e^(.078 t)

ln 2 = .078 t

t = .693/.078 = 8.9 years