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  uugh, my daughters algebra homework, can someone help solve this?
  
  what is h if :
  
  A=1/2h(a+b)
  
  Asked by Anonymous at 9:19 PM on Nov. 1, 2010 in Teens (13-17)
  
  • http://www.algebra.com/services/rendering/simplifier.mpl
  
  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.
  
  Answer by DonnaPinitonya at 9:22 PM on Nov. 1, 2010
  
  • *times
  
  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.
  
  Answer by CrystalRaee at 9:23 PM on Nov. 1, 2010
  
  • I think it is A over 1/2(a+b)=h
  
  Answer by dancinintherain at 9:23 PM on Nov. 1, 2010
  
  • I think it's h=2A/(a+b)
  
  Answer by Kword at 9:26 PM on Nov. 1, 2010
  
  • h=2A/(a+b)
  
  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?
  
  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
  
  Answer by JeanetteRene at 9:47 PM on Nov. 1, 2010
  
  • I thought we were solving for h?
  
  Answer by layh41407 at 10:13 PM on Nov. 1, 2010
  
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