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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.

  2. jcsd
  3. Feb 25, 2013 #2


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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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