SOLUTION: I need to find what n is in this equation: {{{ A=P(1-r)^n }}} How do i find out what n is? Please show working out.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: I need to find what n is in this equation: {{{ A=P(1-r)^n }}} How do i find out what n is? Please show working out.      Log On


   

Question 984610: I need to find what n is in this equation:
+A=P%281-r%29%5En+
How do i find out what n is?
Please show working out.
Found 2 solutions by Cromlix, Alan3354:
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
You need to know values for:
A,P and r to be able to find out
the value of n.
Repost with these values please.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I need to find what n is in this equation:
+A=P%281-r%29%5En+
================
If you want to solve for n:
+A%2FP+=+%281-r%29%5En+
ln%28A%2FP%29+=+n%2Aln%281-r%29
n+=+ln%28A%2FP%29%2Fln%281-r%29