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March 3, 2015

March 3, 2015

Posted by **talisa** on Wednesday, September 25, 2013 at 10:01pm.

- algebra -
**Reiny**, Wednesday, September 25, 2013 at 10:07pmso you are solving

2000(.8)^n = 500

.8^n = 500/2000 = .25

take log of both sides

log .8^n = log .25

n log .8 = log .25

n = log .25/log .8 = appr 6.2 years

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