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  • Nash B.
    replied
    Originally posted by Denny View Post
    As the operator of the calculator, you still have to interpret the problem and input it properly into the calculator.
    No you don't. Type 48 / 2 * (9+3) = and you get 288.
    Originally posted by Blame Canada View Post
    The way it's written signifies:
    48
    -------
    2(9+3)
    No, it doesn't. The way it's written signifies 48 / 2 * (9+3). With the "replacement rule," it goes to 48 / 2 * 12, and then 24 * 12, and then 288.

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  • Blame Canada
    replied
    The way it's written signifies:
    48
    -------
    2(9+3)

    specifically due to the replacement rule you used.

    To be 288 it would have to be:

    48
    ---- *(9+3)
    2

    Which using the replacement rule would be written as: 48/2 * (9+3)
    (9+3) = Y
    12 = Y
    48/2 * Y = 24 * Y = 24*12 = 288

    Leave a comment:


  • mustangguy289
    replied
    Well fuck me and my answer of 2. I was using PEMDAS but forgot Mult. and Div. were on same level and then you went left to right as mentioned above.

    "A common technique for remembering the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank). When you have a bunch of operations of the same rank, you just operate from left to right. For instance, 15 ÷ 3 × 4 is not 15 ÷ 12, but is rather 5 × 4, because, going from left to right, you get to the division first. If you're not sure of this, test it in your calculator, which has been programmed with the Order of Operations hierarchy. For instance, typesetting this into a graphing calculator, you will get:"

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  • openroadracer
    replied
    1 dollar bob.

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  • Roscoe
    replied
    Originally posted by Denny View Post
    I actually said that to myself out loud. Fucking division symbol.
    Same here... LOL

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  • butt86
    replied
    rat snake?

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  • papapepper
    replied
    Holy shit everyone got it wrong. LMAO!

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  • Denny
    replied
    Originally posted by Ruffdaddy View Post
    syntax is a huge part of this. That problem can be read a few ways, and anyone setting that up would have to be familiar with the situation. Had the original problem been stated with a division bar instead of a quotient sign, we would have more right answers.
    I actually said that to myself out loud. Fucking division symbol.

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  • Ruffdaddy
    replied
    syntax is a huge part of this. That problem can be read a few ways, and anyone setting that up would have to be familiar with the situation. Had the original problem been stated with a division bar instead of a quotient sign, we would have more right answers.

    Leave a comment:


  • line-em-up
    replied
    ...

    Originally posted by Denny View Post
    There are calculators that will do the same. It's all about the order of the equation, though. As the operator of the calculator, you still have to interpret the problem and input it properly into the calculator.
    I just pasted it in there, straight from the dfws page. I figured it should be smart enough to know what to do with it.

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  • Denny
    replied
    Originally posted by line-em-up View Post
    That's funny, this site gave me "2".

    http://www.basic-mathematics.com/fre...em-solver.html
    There are calculators that will do the same. It's all about the order of the equation, though. As the operator of the calculator, you still have to interpret the problem and input it properly into the calculator.

    Leave a comment:


  • Strychnine
    replied
    Originally posted by line-em-up View Post
    That's funny, this site gave me "2".

    http://www.basic-mathematics.com/fre...em-solver.html
    Your solver sucks. Use Wolfram Alpha.

    Leave a comment:


  • line-em-up
    replied
    ...

    That's funny, this site gave me "2".

    Solve any math problems instantly with this free math problem solver. Don't become lazy though! Use the solver mainly as a tool to check your answers.

    Leave a comment:


  • Denny
    replied
    Originally posted by Neil View Post
    I knew it was 288 before I clicked it, but it was shocking to see how many people picked 2.
    It's amazing how that works after we talk about it. Yay for the late comers.

    Leave a comment:


  • Ratt
    replied
    I knew it was 288 before I clicked it, but it was shocking to see how many people picked 2.

    Leave a comment:

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