LexiWalz
Oct 26, 2011, 06:06 PM
How do I solve for t using logs
ebaines
Oct 27, 2011, 08:07 AM
If you mean this:
12 = 24(0.84)t
Then rearrange:
t = \frac {12}{(24)(0.84)}
Now take the logarithm of both sides:
\log(t) = \log (\frac {12}{(24)(0.84)})
and apply the rules:
\log(ab) = \log (a) + \log (b) \\
\log(a/b) = \log (a) - \log (b)
Once you get the answer in terms of log(t) = x, then raise both sides to the power of 10, so you get
10^ {log(t)} = 10^x
and recall that
10^ {log(t)} = t
Hope this helps.