i find a really good way to write a discursive is to pretend you're writing a TEDtalk... i mean that's what's worked for me so far and all the examples my teachers have shown us are just TEDtalks
Oh! I ended up solving it like this:
C=Ae^(-kt)
60%A=100%Ae^(-k*5)
ln(0.6)=-k*5
So, -k=ln(0.6)/5
20%A=100%Ae^((ln(0.6)/5)*t)
ln(0.2)/(ln(0.6)/5)=t
So, t=15.7533
So I guess it works! Thank you!
I've kinda been having some trouble with this question- can anyone help me out?
The current C flowing in a conductor dissipates according to the formula dC/dt = -kC. If it dissipates by 40% in 5 seconds, how long will it take to dissipate to 20% of the original current?
(The answer is 15.8...