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Homework Help: Need Math help exponents/logarithms word problem

  1. Mar 4, 2010 #1
    1. The problem statement, all variables and given/known data
    A gallon of milk will last 192 hours at 0 degrees celcius, 42 hours at 22 degrees celcius, how long will it last at 30 degrees celcius?


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Mar 5, 2010 #2

    Mark44

    Staff: Mentor

    What have you tried? You need to show some effort at a problem before anyone can help you. Them's the rules...
     
  4. Mar 5, 2010 #3
    Log (H) = 192 - Log (T)^x

    Fits for the first data set, but doesn't fit the problem?

    I'm confused and stuck?
     
  5. Mar 5, 2010 #4

    Mark44

    Staff: Mentor

    You have not given us the entire problem description. Apparently you are supposed to fit this data to some kind of function. Since you are given two points-- (0, 192) and (22, 42), one possibility is to fit this data to a linear equation.

    If you are supposed to do this some other way, please specify what that way is.
     
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