Question

Caffenie leaces the body at a rate of 15.6% each hou. your first cup of coffee in the morning has 100 mg of caffenie


How long will it take before you have 50 mg of that caffenie in your body and how long will it take before you have 25 mg of caffenine in your body

Answer 1

A = Ao*e^(rt)
50 = 100*e^(.844*t)

Answer 2

so, ln(.5) = .844t, and ln(.5)/.844 = t

Answer 3

is that the answer

Answer 4

No, I think I dropped a negative from the original equation, just a sec

Answer 5

so

Answer 6

tonks are u there