# solve?? exponential

• Oct 24th 2006, 09:51 AM
brandy
solve?? exponential
okay I was wondering how I would get the n by itslef?
like here is an example I don't get maybe someon can help me out!
18.75=(1.07)^n

how do I solve for n?
• Oct 24th 2006, 10:00 AM
ThePerfectHacker
Quote:

Originally Posted by brandy
okay I was wondering how I would get the n by itslef?
like here is an example I don't get maybe someon can help me out!
18.75=(1.07)^n

how do I solve for n?

Take logarithm of both sides,
[tex]n\log (1.07)=\log (18.75)
Thus,
$n=\frac{\log(18.75)}{\log (1.07)}$