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14 August, 16:02

What is 3 1/2 of a dozen eggs

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  1. 14 August, 16:23
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    'of' means multiply

    convert 3 and 1/2 to a improper fraction for easier mutlipying

    3 and 1/2=3+1/2=6/2+1/2=7/2

    a dozen is 12 eggs

    7/2 of a dozen means

    7/2 times 12=84/2=42

    that is 42 eggs
  2. 14 August, 16:27
    0
    There are 12 eggs in a dozen. We can set up a cross-multiplication problem to solve this. 12/100=3.5/x

    3.5 times 100 is 350, or two decimal places to the right. 12 times x is 12x. Now we can solve for x.

    12x=350

    divide 12 on both sides to isolate x.

    350 divided by 12 is 29.1666667

    so 3.5 is 29.66666667 of 12.
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