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Solving a system of equations

  1. Oct 10, 2007 #1
    1. The problem statement, all variables and given/known data

    conssider the system of equations
    a + b = 2m^2
    b+c=6m
    a+c =2

    Determine all real values of m for whcih a<=b<=c


    2. Relevant equations



    3. The attempt at a solution

    tried subtracting the equations

    got a-c = -4m

    a= -6m +2

    i have no idea what im trying to do..help
     
  2. jcsd
  3. Oct 10, 2007 #2

    rock.freak667

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    Homework Helper

    Try eliminating c using the 2nd and 3rd equations
     
  4. Oct 11, 2007 #3

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    I agree with rock.freak667. It's fairly easy to solve for a, b, and c in terms of m. Then set up the inequalities and solve for m.
     
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