SOLUTION: I need help ASAP its for a test... please and thank you Susan invested $5000.00 at 10% compounded semiannually. In how many years will Susan's investment have tripled? Round yo

Question 189268: I need help ASAP its for a test...
please and thank you
Susan invested $5000.00 at 10% compounded semiannually. In how many years will Susan's investment have tripled? Round your answers to the nearest tenth of a year.
A) 11.3 years B) 11.0 years C) 1.3 years D) 6.9 years
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!

:
ln(3)=ln
:

:
22.51=2t
:
t=11.3
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