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Homework Help: Y = 9/4 - 3.3/2

  1. Jun 6, 2010 #1
    Hi all

    the Q y = 9/4 - 3.3/2

    the answer = -9/4

    but when i try to solve i don't dounf same the answer

    9/4 - 3 . 3/2
    9/4 + 9 / 2

    18 + 36 / 8 = 22.5

    this answer which I found

    regared
     
  2. jcsd
  3. Jun 6, 2010 #2
    You changed a sign by mistake in your working

    = 9/4 - 3(3/2)
    = 9/4 - 9/2
    = -9/4
     
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