Question 1173001
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a   TWIN   problem was just solved 20 minutes ago under this link


<A HREF=https://www.algebra.com/algebra/homework/Finance/Finance.faq.question.1173000.html>https://www.algebra.com/algebra/homework/Finance/Finance.faq.question.1173000.html</A>


https://www.algebra.com/algebra/homework/Finance/Finance.faq.question.1173000.html



The approach used in this solution is similar to that of &nbsp;Priscilla, &nbsp;but is much more &nbsp;STRAIGHTFORWARD &nbsp;and &nbsp;SIMPLE, 

since it uses logarithm base &nbsp;10, &nbsp;instead of &nbsp;(unjustly) &nbsp;complicated logarithm's base of the Priscilla' solution.


So, &nbsp;learn my referred solution and try to adopt it.


Notice that my approach using logarithm base &nbsp;10 &nbsp;is the &nbsp;STANDARD &nbsp;method solving such problems.



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Priscilla, &nbsp;please accept my congratulations with your debut at this forum.



It can be useful for you, &nbsp;TOO, &nbsp;to be acquainted with my solution and the lesson, &nbsp;to which I referred in my post.



Priscilla, &nbsp;it is nice that you love to teach others; &nbsp;and I see that you have good skills and incline to explain,


but at this forum, &nbsp;you also may learn &nbsp;&nbsp;<U>A &nbsp;LOT</U> &nbsp;&nbsp;for yourself.



Do not miss this opportunity &nbsp;(!)