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March 29, 2017

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mark has 48 marbles.5/12 of them are blue and 1/2 of them are yellow.how many more yellow marbles than blue marbles does he have?

my answer is 8,am i right.if not how.

  • math aig - ,

    Yellow: 1/2*48=24
    Blue: 5/12 *48=20

    How did you get 8?

  • math aig - ,

    first find out exactly how much of each you have with simply ratio cross multiplication

    (x/48)=((5/12)

    240= 12x divide by 12

    gives you x = 20 (x is blue marbles)

    (1/2)= (y/48)

    2y= 48

    y= 24 so he has 4 more yellows

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