math question folks

Discussion in 'Discussion Group' started by Rockyv58, Feb 22, 2012.

  1. Rockyv58

    Rockyv58 Well-Known Member

    Classmate and I see it differently. The half life is 5.24 days. She says the .24 is 2400ths of a day and I am saying that .24 is equal to 1 hour. So I am thinking it is 5.24 days is 121 hours.


    Any opinions?
     
  2. bosoxfan

    bosoxfan Well-Known Member

    I would say that it's 5 and 24 100ths (not 2400ths).

    How would you express 5 hours using your logic, if .24 is one hour?
     
  3. kevinsmithii

    kevinsmithii Well-Known Member

    121 hours divided by 5.24 days would make 1 day equal 23.09 hours.

    5,24 days is 125 hours 45 minutes 36 seconds
     
  4. Kent

    Kent Well-Known Member

    I'm with your classmate.

    5.24 days = 5 days and 5.76 hours (24 hrs x .24 = 5.76 hrs) = 125.76 hrs

    I've never seen a mathematical equation with a decimal where one side of the decimal was in one unit such as days, and the other side of the decimal was in a different unit.
     
  5. Rockyv58

    Rockyv58 Well-Known Member

    I was looking at the .24 as 1/24th of a day hence 1 hour
    and I know she was looking at the .24 as 24 100ths


    the more I look at it I am starting to see where my logic is failing. Cause if it was 5.50 days that would be 5 days 12 hours and 5.25 would be 5 days 6 hours
     
    Last edited: Feb 22, 2012
  6. Rockyv58

    Rockyv58 Well-Known Member

    Thanks all
     

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