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Math Help - Word Problem Equation Help

  1. #1
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    Word Problem Equation Help

    Hi. I have an equation problem I need some help with, it has me stumped and I am sure it is something very simple. The problem is:

    A number, twice that number and one-fifth of that number are added. The result is 16, what is the number?

    I tried and came up with the figure below, which is definitely wrong because the answer just doesn't fit.

    n + 2x + (1/5)x = 16

    3x + (1/5)x = 16

    (3 1/2)x = 16

    x=(16)(2/7)

    x=4.6

    Any help would be greatly appreciated.
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  2. #2
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by dclary View Post
    Hi. I have an equation problem I need some help with, it has me stumped and I am sure it is something very simple. The problem is:

    A number, twice that number and one-fifth of that number are added. The result is 16, what is the number?

    I tried and came up with the figure below, which is definitely wrong because the answer just doesn't fit.

    x + 2x + (1/5)x = 16

    3x + (1/5)x = 16

    (16/5)x = 16

    Try that, your fraction addition was a little off

    Any help would be greatly appreciated.
    ...
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  3. #3
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    Thank you very much, I knew I was doing something wrong. Thanks again and have a good evening.

    Take care,
    Diana
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  4. #4
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by dclary View Post
    Thank you very much, I knew I was doing something wrong. Thanks again and have a good evening.

    Take care,
    Diana
    No problem
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