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Math Help - Mixed numbers word problem

  1. #1
    Senior Member vaironxxrd's Avatar
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    Mixed numbers word problem

    If you lose 3\frac{1}{2}pounds the first week of your diet and 2\frac{2}{3}pounds the second week, how many
    pounds do you still need to lose to reach your goal of losing 10 pounds?

    Answer(provided): 9\frac{1}{10}

    To my belief pounds to reach goals = 10 - total lost
    which in this case would be 10 - ( 2\frac{2}{3} + 3\frac{1}{2})
    Which is 10 - ( \frac{7}{2}+\frac{8}{3})
    Which is 10 - \frac{37}{6}
    Which is \frac{23}{6} = 3\frac{5}{6}

    Why am I wrong, what might I be thinking opposite to what is actually right?

    Thanks
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  2. #2
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    Re: Mixed numbers word problem

    What you have written is correct, provided that you have copied the question down correctly.
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    Re: Mixed numbers word problem

    Yup. That's what I got too.
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    Senior Member vaironxxrd's Avatar
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    Re: Mixed numbers word problem

    Quote Originally Posted by Prove It View Post
    What you have written is correct, provided that you have copied the question down correctly.
    Quote Originally Posted by highvoltage View Post
    Yup. That's what I got too.
    Then why is the correct answer, according to the test answers, 9\frac{1}{10}?
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    Re: Mixed numbers word problem

    I kept thinking that this was some kind of trick question or something.
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    Re: Mixed numbers word problem

    Quote Originally Posted by vaironxxrd View Post
    Then why is the correct answer, according to the test answers, 9\frac{1}{10}?
    Either the answers are wrong, or you have read the answer to a different question, or you have copied the question wrong.
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    Senior Member vaironxxrd's Avatar
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    Re: Mixed numbers word problem

    Quote Originally Posted by Prove It View Post
    Either the answers are wrong, or you have read the answer to a different question, or you have copied the question wrong.
    Mr. Prove it, you indeed proved it. I was going back and forth between the pages and I was reading three answers ahead.
    So I was right, so I'm really not low on my pre-algebra skills. I don't even know why am I reviewing this unit.
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