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3 Bumps

uugh, my daughters algebra homework, can someone help solve this?

what is h if :

A=1/2h(a+b)

Thanks in advance...

Answer Question
 
Anonymous

Asked by Anonymous at 9:19 PM on Nov. 1, 2010 in Teens (13-17)

Answers (13)
  • http://www.algebra.com/services/rendering/simplifier.mpl

    that will help you and any more problems you have
    Lovin_mybaby5

    Answer by Lovin_mybaby5 at 9:21 PM on Nov. 1, 2010

  • A = 1/2 time h divided by a+ b
    Do the out of paretnhesis and the in parenthesis as their own problems then dived them.
    DonnaPinitonya

    Answer by DonnaPinitonya at 9:22 PM on Nov. 1, 2010

  • *times
    DonnaPinitonya

    Answer by DonnaPinitonya at 9:22 PM on Nov. 1, 2010

  • wow wish I could help )= just graduated not to long ago from college but i didnt take much math.
    CrystalRaee

    Answer by CrystalRaee at 9:23 PM on Nov. 1, 2010


  • I think it is A over 1/2(a+b)=h
    dancinintherain

    Answer by dancinintherain at 9:23 PM on Nov. 1, 2010

  • I think it's h=2A/(a+b)
    Kword

    Answer by Kword at 9:26 PM on Nov. 1, 2010

  • h=2A/(a+b)


     

    layh41407

    Answer by layh41407 at 9:26 PM on Nov. 1, 2010

  • OK, you need to isolate the h. the first thing I did was divide both sides by the (a+b) so that the equation is A/(a+b)=1/2h.
    Then you need to divide both sides by the 1/2 in order to solve for h. But when you divide by a fraction you invert it, so you are multiplying the A/(a+b) by 2/1 and not 1/2. Therefore, it is 2A/(a+b).
    does that make sense?
    layh41407

    Answer by layh41407 at 9:30 PM on Nov. 1, 2010

  • making a the subject

    FIRST

    * rewrite the equation as A= h(a+b) / 2 or 1h(a+b) / 2...same thing
    * multiply both sides by 2 to eliminate it from the Right Hand Side (RHS) ...so now u will have

    2*A =2A= h(a+b)

    * divide both sides by h to get rid of it over the RHS

    so now

    2A / h = a+b

    then finally
    * subtract b from both sides so u have a as the subject

    so the final equation will be

    2A/h - b= a

    JeanetteRene

    Answer by JeanetteRene at 9:47 PM on Nov. 1, 2010

  • I thought we were solving for h?
    layh41407

    Answer by layh41407 at 10:13 PM on Nov. 1, 2010

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