Pretty much what the title says. I'm trying to solve for "t" in this scenario.
P(t) = Percentage of C14 Remaining = 70
t = time
P(t) = 100(1/2)^(t/5730)
P(t)/100 = (1/2)^(t/5730)
(logP(t))/100 = log(1/2)^(t/5730)
(log(P(t))/100 = (t/5730)log(1/2)
((log(P(t))(log(1/2)))/573000 = t
t= ((log(70))(log(1/2)))/573000
t = 9.69 x 10^7
I'm pretty sure it's wrong. I know it looks confusing like this, but if you write it out you'll probably see where I went wrong... I hope!
Thanks!
Quick Logarithm Homework Check
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 Posts: 22
 Joined: Sun May 09, 2010 1:37 pm UTC
Quick Logarithm Homework Check
I see.
What?
That you don't.
What?
That you don't.
Re: Quick Logarithm Homework Check
Why didn't you take the log of 100? That line should beAssasinof6 wrote:P(t)/100 = (1/2)^(t/5730)
(logP(t))/100 = log(1/2)^(t/5730)
[math]log \frac {P(t)}{100} = log((1/2)^{t/5730})[/math]
You, sir, name? wrote:If you have over 26 levels of nesting, you've got bigger problems ... than variable naming.
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 Posts: 22
 Joined: Sun May 09, 2010 1:37 pm UTC
Re: Quick Logarithm Homework Check
Thanks! I got the right answer after continuing to solve from there.
Much appreciated.
Much appreciated.
I see.
What?
That you don't.
What?
That you don't.
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