Question 1079422
22000=6000(1.1)^n
11/3=1.1^n, dividing by 6000 both sides and reducing fractions
ln both sides
ln (11/3)=n ln (1.1)
taking the ln (11/3) and dividing by ln (1.1)
n=13.63 years
Check.
6000*(1.1)^13.63=$21,995.49, within rounding error.