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Posted by on Friday, November 26, 2010 at 2:22pm.

30 = 12d

  • 7th grade math - , Friday, November 26, 2010 at 2:23pm

    d = 30/12 = 15/6 = 5/2 = 2 1/2

  • 7th grade math - , Friday, November 26, 2010 at 2:24pm

    check 12*2 + 6 = 24+6 = 30 sure enough

  • 7th grade math - , Thursday, December 2, 2010 at 11:06pm

    The answer to 30=12d

    d=18

  • 7th grade math - , Wednesday, April 27, 2011 at 4:21pm

    30=12d, this means 30 is equal to 12*?

    You have to find the missing variable, so d would equal 2.5, or 2 1/2

  • 7th grade math - , Saturday, April 30, 2011 at 11:52am

    30=12d

    Divide both sides by the co-efficient.
    12/12 leaves you with d.
    30/12 leaves you with 2.5
    D=2.5

    Check your work.
    30= 12*2.5
    12*2.5= 30
    30=30

  • 7th grade math - , Wednesday, August 15, 2012 at 11:58am

    simplify 6 12/18

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