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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...