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Differential equation

  • #1

Homework Statement



The concentration of a particular drug in a patient’s bloodstream declines at a rate proportional
to the concentration, with constant of proportionality k = 0.2 if time is measured in hours. If
the concentration of the drug in the patient’s bloodstream is 10mm/ml (millimoles per milliliter)
shortly after the injections, what will the concentration be 12 hours later?

Homework Equations





The Attempt at a Solution


Just want to know if I set this one up correctly.
dC/dt=-kC
If I didn't, don't be afraid to rip it apart :D.
 

Answers and Replies

  • #2
Dick
Science Advisor
Homework Helper
26,258
618
That looks like what the problem is asking for all right.
 
  • #3
Okay, thanks! Then I must've messed up when I integrated it.
 

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