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Homework Help: D.E. Mixture problem: Can't find mistake

  1. Feb 25, 2013 #1
    I was told I made a mistake somewhere but I can't find it.
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    p1YkBxw.jpg
     
  2. jcsd
  3. Feb 25, 2013 #2

    haruspex

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    Your working and answers look fine to me. I checked the rate of increase at t=0, and your D.E. gives 7g/min as required.
     
  4. Feb 25, 2013 #3
    ok. Thanks.
     
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