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Math Help - help; missing numbers

  1. #1
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    Unhappy help; missing numbers

    find the missing numbers

    3/5 = a/10 = b/20
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by starslacker View Post
    find the missing numbers

    3/5 = a/10 = b/20
    Let's take them one at a time.

    3/5 = a/10

    Multiply both sides by 10:
    10*(3/5) = 10*(a/10)

    6 = a

    For b:

    3/5 = b/20

    Multiply both sides by 20:

    20*(3/5) = 20*(b/20)

    12 = b

    -Dan
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  3. #3
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    Quote Originally Posted by starslacker View Post
    find the missing numbers

    3/5 = a/10 = b/20
    a=6, b=18
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  4. #4
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by poohbearjkr View Post
    a=6, b=18
    b can't be 18.

    18/20 = 9/10 which is not the same as 3/5.

    -Dan
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