Question 1146859
.
<pre>


12000 = {{{6000*e^(0.045*t)}}}


{{{12000/6000}}} = {{{e^(0.045*t)}}}


2 = {{{e^(0.045*t)}}}


ln(2) = 0.045*t


t = {{{ln(2)/0.045}}} = 15.40 years.    <U>ANSWER</U>
</pre>