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Formula help

  1. Dec 3, 2009 #1
    1. I have a formula and for some reason cant grasp it



    2. Ro + 0.4Ro = 140
    Answer is Ro = 100




    3. Ro + 0.4Ro = 140
    1+0.4 Ro = 140
    1.4 Ro = 140
    140 / 1.4 = Ro

    Is this correct
     
  2. jcsd
  3. Dec 3, 2009 #2

    stewartcs

    User Avatar
    Science Advisor

    Yes.

    There is an assumed 1.0 in front of the Ro.

    CS
     
  4. Dec 3, 2009 #3
    Thanks for advise
     
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