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48÷2(9+3) = ????

  • tBell Tolls said...

    I have evidence that a numerator and denomimator have implied parenthesis around them. That is fact. I dont have evidence that 2(9+3) is grouped whereas 2*(9+3) is not. That's my feeling which you and many others don't agree with, and I should have expected an immature reaction after stating that opinion.
    I'm starting to feel like I'm trying to explain this to a child. Congrats on figuring out Daddy's 247 password little buddy.

    So, really, you have no evidence ... Because without the evidence that there is your magical invisible parenthesis, you don't know what is the numerator and what is the denominator.

    As a matter of fact, there is more evidence that supports the fact that 48 is the numerator an only 2 is the denominator.

    bulldogg

  • bulldogg said...

    As a matter of fact, there is more evidence that supports the fact that 48 is the numerator an only 2 is the denominator.

    Ok then. Recap the evidence that (9+3) belongs in the numerator of the expression and provide a source.

    This post has been edited 2 times, most recently by tBell Tolls on 6/7/2012 at 2:04 PM

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    tBell Tolls

  • tBell Tolls said...

    Ok then. Recap the evidence that (9+3) belongs in the numerator of the expression and provide a source.

    As you have alluded to, division can also be represented as a faction (dividend/divisor. Ex. one divided by 3 can be represented as 1/3). So to figure out the fraction that you so desperately want to do, you have to decide what is the dividend and what is the divisor. We agree that what is in the parenthesis is done first: 9+3=12. Now, all you have left is multiplication and division. Next, according to the order of operands, since multiplication and division are treated equally, you now work left to right. So, the first number (48) is the divisor and the next (2, because there is no such thing in this case as invisible parenthesis) is the dividend. You the perform that operation 48/2 which equals 24 obviously. Then you have a multiplication problem remaining 24x12.

    bulldogg

  • tBell Tolls said...

    Ok then. Recap the evidence that (9+3) belongs in the numerator of the expression and provide a source.

    Generally when solving a problem, you would go with the solution that requires the least amount of assumptions, solving as written requires none, solving with 'invisible parenthesis' requires a very large assumption, one that has no basis in mathematics. So if you want to choose to take the road of unbased assumptions, go for it dude, all it does it make you wrong.

    signature image

    J_LaP

  • J_LaP said...

    Generally when solving a problem, you would go with the solution that requires the least amount of assumptions, solving as written requires none, solving with 'invisible parenthesis' requires a very large assumption, one that has no basis in mathematics. So if you want to choose to take the road of unbased assumptions, go for it dude, all it does it make you wrong.

    Especially since a number next to ( assumes an invisible multiplication sign before invisible parenthesis.

    It would be more accurate to rewrite the equation as:

    48÷2*(9+3)

    than:

    48÷(2(9+3) )

    LoneWolfSparty

  • LoneWolfSparty said...

    Especially since a number next to ( assumes an invisible multiplication sign before invisible parenthesis.

    It would be more accurate to rewrite the equation as:

    48÷2*(9+3)

    than:

    48÷(2(9+3) )

    Exactly, actually it is not just "more accurate", it just is accurate vs not accurate. That is why I don't classify inserting a multiplication sign as a assumption, it is not, it is a rule of mathematics that there is a multiplication sign there.

    This post was edited by J_LaP on 6/7/2012 at 2:57 PM

    signature image

    J_LaP

  • bulldogg said...

    As you have alluded to, division can also be represented as a faction (dividend/divisor. Ex. one divided by 3 can be represented as 1/3). So to figure out the fraction that you so desperately want to do, you have to decide what is the dividend and what is the divisor.

    Exactly. Since there is no written operator after the 2, it's ambiguous whether all the terms after the division symbol are in the divisor or not. The answer is that the question is unclear.
    Edit: I'll still think the answer is 2 until you link some expert evidence that proves it wrong.

    This post was edited by tBell Tolls on 6/7/2012 at 3:16 PM

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  • tBell Tolls said...

    Exactly. Since there is no written operator after the 2, it's ambiguous whether all the terms after the division symbol are in the divisor or not. The answer is that the question is unclear. Edit: I'll still think the answer is 2 until you link some expert evidence that proves it wrong.

    No, the answer is 288.

    LoneWolfSparty

  • tBell Tolls said...

    Exactly. Since there is no written operator after the 2, it's ambiguous whether all the terms after the division symbol are in the divisor or not. The answer is that the question is unclear.
    Edit: I'll still think the answer is 2 until you link some expert evidence that proves it wrong.

    It's only ambiguous because you had poor math teachers growing up. One requires a very small assumption, to the point of it not being an assumption at all because it is regularly practiced mathematics, one requires a huge assumption that has no basis in mathematics (invisible parenthesis), you choose the larger assumption just because you like to stir the pot apparently.

    signature image

    J_LaP

  • The answer is 2.

    Order of operations:

    First you calculate the numbers inside the parenthesis.

    Then you take that result and multiply it by the number adjacent to the parenthesis.

    Then you calculate the rest.

    You must deal with the brackets and parentheses first.

    Its five o'clock somewhere.

    Hematoma

  • stir

    Play

    Berkeley Ring Theorist Solves 48 ÷ 2(9+3)

    Berkeley ring theorist tackles the internet's biggest math problem

    http://www.youtube.com/v/SB3Ekgt1pHw
    signature image

    mriderblue12 said... Your a retard.

    Watch Out Pylon

  • Watch Out Pylon said...

    stir

    I believe this guy. The right answer is the one you choose.

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    tBell Tolls

  • Hematoma said...

    The answer is 2.

    Order of operations:

    First you calculate the numbers inside the parenthesis.

    Then you take that result and multiply it by the number adjacent to the parenthesis.

    Then you calculate the rest.

    You must deal with the brackets and parentheses first.

    Ummm ... No.

    You do not multiply before you divide. Mathematics rule.

    Amazing how many people don't get this (or just like to stir the pot).

    bulldogg

  • tBell Tolls said...

    I believe this guy. The right answer is the one you choose.

    LOL - uh huh. That is your choice to break mathematics rules and believe what you want I guess.

    Some people believe the world is flat too.

    bulldogg

  • bulldogg said...

    Ummm ... No.

    You do not multiply before you divide. Mathematics rule.

    Amazing how many people don't get this (or just like to stir the pot).

    watch the video that was just posted. The guy is a prof. at Berkeley.

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    Hide yo quarterbackz, hide yo kidz, the MSU defense is here

    tBell Tolls

  • ~Stils~ said...

    I want to see people yell at each other over stupid stuff so... bump.

    A POX UPON THEE AND THY HOUSE for bumping this infernal thread.... There are NOT enough DOWNVOTES!!!gunhammerfrustratedcensoredrottentomato
    rottentomatorottentomatorottentomatorottentomatorottentomatorottentomato
    rottentomatorottentomatorottentomatorottentomatorottentomatorottentomato

    My Blood Runs Green.....

    jartan77

  • Hematoma said...

    The answer is 2.

    Order of operations:

    First you calculate the numbers inside the parenthesis.

    Then you take that result and multiply it by the number adjacent to the parenthesis.

    Then you calculate the rest.

    You must deal with the brackets and parentheses first.

    You must deal with parenthesis first - that is not the issue. The question is asking,

    48 ÷ 2 x 12 = ?

    The answer is 288.

    bulldogg

  • bulldogg said...

    You must deal with parenthesis first - that is not the issue. The question is asking,

    48 ÷ 2 x 12 = ?

    The answer is 288.

    My TI-85 says 2, so you are obviously wrong.

    signature image

    mriderblue12 said... Your a retard.

    Watch Out Pylon

  • LoneWolfSparty said...

    We've all been had!

    Start watching at 2:35.

    I tried saying this in the begining BUT NO ONE WOULD LISTEN TO ME!!!

    And can people please STOP blaming math teachers? Is it really that much of a stretch to think that *maybe* you are mis-remembering PEMDAS since you probably learned it over 20 years ago?

    Professor Booty

  • Watch Out Pylon said...

    My TI-85 says 2, so you are obviously wrong.

    Seriously? You typed in 48 then divided by then 2 then multiply the 12?

    My iPhone says 288.

    bulldogg

  • Hematoma said...

    The answer is 2.

    Order of operations:

    First you calculate the numbers inside the parenthesis.

    Then you take that result and multiply it by the number adjacent to the parenthesis.

    Then you calculate the rest.

    You must deal with the brackets and parentheses first.

    You are kidding right?

    48/2*(9+3)

    signature image

    SeeGreen

  • bulldogg said...

    Seriously? You typed in 48 then divided by then 2 then multiply the 12?

    My iPhone says 288.

    lol

    attachment

    Osmo

  • SeeGreen said...

    You are kidding right?

    48/2*(9+3)

    No. You are wrong. I just asked a room full of high school seniors who laughed at this question. It is a simple math problem. you have to deal with the parentheses first. This is how math teachers teach it.

    Its five o'clock somewhere.

    Hematoma

  • Osmo said...

    lol

    the newer one says 288, must be right! lol

    get the new Nike MSU font: http://tinyurl.com/spartansfont

    Nutz Interface

  • Hematoma said...

    No. You are wrong. I just asked a room full of high school seniors who laughed at this question. It is a simple math problem. you have to deal with the parentheses first. This is how math teachers teach it.

    My sister is an MSU math professor... she claims you are wrong.

    Parens win hands down, then it is order of operation which has nothing to do with "what is next to the things in parens".

    This post was edited by SeeGreen on 6/7/2012 at 5:39 PM

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    SeeGreen

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