48÷2(9+3) = ?

View Poll Results: Which answer do you prefer?

Voters
60. You may not vote on this poll
  • 2

    35 58.33%
  • 288

    25 41.67%
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  1. Posts : 53,363
    Windows 10 Home x64
       #101

    Dave76 said:
    This thread holds the record, most pages in the chillout room, before going off topic
    You missed my light beer post, lol. A Guy
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  2. Posts : 761
    Windows 2000 5.0 Build 2195
       #102

    Hopalong X said:
    For the formula

    what is the value of d when u = 3, v = 11 and t = 5?
    http://www.mathopolis.com/questions/q.php?id=1134

    Like I stated before where is the division sign? There isn't one.

    The division sign is replaced by the slash making it a fraction and it is placed EXACTLY where the division sign was.

    48/ 2(9+3)= 2
    Actually, as per your link, the answer to our problem with be 288.

    Following the example from mathopolis



    Let:
    u+v=48
    t=12 <-as per (9+3)


    48 x 12 = 288
    2

    From the above simplified equation, the only way we could get 2 as an answer is to multiply 48/2 to the reciprocal of 12, which we all know should never be done in this case.
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  3. Posts : 12,177
    Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
       #103

    A Guy said:
    Dave76 said:
    This thread holds the record, most pages in the chillout room, before going off topic
    You missed my light beer post, lol. A Guy

    That is what I was referring to, and past due it was...

    I thought page 3 was the un-official limit
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  4. Posts : 53,363
    Windows 10 Home x64
       #104

    Dave76 said:
    A Guy said:
    Dave76 said:
    This thread holds the record, most pages in the chillout room, before going off topic
    You missed my light beer post, lol. A Guy

    That is what I was referring to, and past due it was...

    I thought page 3 was the un-official limit
    I felt it my duty to derail the thread. I voted 2, and everything after is too on topic!

    A Guy
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  5. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       #105

    Dave76 said:
    This thread holds the record, most pages in the chillout room, before going off topic
    That's our fault ! We should be loyal to the Unofficial SF Rules
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  6. Posts : 1,360
    Windows 7 Ultimate x64
       #106

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  7. Posts : 297
    Windows 7 Pro x64
       #107

    Do what's in parentheses first. The answer is 2

    48÷2(9+3)

    48÷2(12)

    48÷24

    2



    EDIT: Just realized there's like, 11 pages in this thread. My bad. :/
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  8. Posts : 8,383
    Windows 10 Pro x64, Arch Linux
       #108

    48÷2*(9+3) = 48÷2*(12) = 48÷24 = 2
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  9. Posts : 28
    Win7 Ultimate SP1 6.1.7601 x86
       #109

    The Standard Order of Operations should not be applied in this type of equation.
    ~ 48÷2*(9+3) = ???

    In both the SOOO and PEMDAS rules, parenthesis are simplified first before proceeding.
    Both rule simply the equation to 48÷2*(12) or 48÷2*12

    SOOO vs Pemdas
    ~ SOOO will basically simplify it to 288.
    ~ PEMDAS will basically simplify to 2.


    The resulting answer between both differs due to dissimilar order of mathematical processes.
    ~ Division is applied before multiplication in SOOO.
    ~ Multiplication is applied before division in PEMDAS


    SOOO should not be applied in this type of equation since 12 is simplified from a parenthesis which involved addition.
    The sum, 2 is proceeded using the PEMDAS rule since multiplication must be done first since the equation wuz simplified from a parenthesis. And since 48 wuz not derived from a parenthesis we proceed with multiplication before division.

    Google simplifies 48÷2*(9+3) into (48÷2)*(9+3), perhaps since it follows the SOOO in any type of equation. The indication of parenthesis in 9+3 depicts that such must be multiplied to 2. The absence of parenthesis in 48÷2 tells that both is not to be simplified first and thus 2 must be multiplied to the sum of the parenthesis before division is to be proceeded.

    Therefore, there is only 1 correct solution to the equation which is 2
    Order of operations - Wikipedia, the free encyclopedia

    Crap, I'm not even sure of what I'm saying... i'm still a kid....
    Last edited by kenmdotexe; 16 May 2011 at 03:12.
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  10. Posts : 13,354
    Windows 7 Professional x64
       #110

    I just cheated; I entered the equation into a graphing calculator, exactly like this:
    Code:
    48/2(9+3)
    Calc spit out 288...
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