48÷2(9+3) = ???? |
2 |
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78% |
[ 11 ] |
288 |
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21% |
[ 3 ] |
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Total Votes : 14 |
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Action Hank Yes, I fart dicks. Dicks actually come out of my anus when I fart. Joined: 20 Jan 2007 Posts: 8600 (Sun Apr 10, 2011 9:16 am) Reply

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Re: Arithmetic |
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How is 2 the correct answer?
If you follow PEDMAS (parenthesis, exponentials, division/multiplication, addition/subtraction, moving from left to right) you get:
48÷2(9+3)
48÷2(11)
24(11)
288
Any other way is incorrect.
48÷2(9+3)
48÷(18+6)
48÷24
2
IS WRONG, because you did not complete the parenthesis first! The 2 is outside the parenthesis.
or
48÷2(9+3)
48÷2(12)
48÷24
2
IS WRONG, because you did not move from left to right. Division and multiplication occur at the same time and there is no hierarchy between them other than moving left to right. Same with addition/subtraction.
Also, the equation should be interpreted as:
48 ÷ 2 x (9 + 3)
not
48 ÷ (2 x (9+3))
Otherwise the additional parenthesis would have been included. It isn't implied! |
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My Head Hurts 90 Joined: 19 Jan 2007 Posts: 3445 (Sun Apr 10, 2011 9:51 am) Reply

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Re: Arithmetic |
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I don't even know what to think anymore! Anyways, I did 2, because of Peter reasons and that I might be dumb. |
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Sporkism It's funny that I have a job executing cats and dogs, considering that I AM A WHORE WHO FUCKS FOR MONEY Joined: 05 Jan 2007 Posts: 5369 (Sun Apr 10, 2011 10:09 am) Reply

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Re: Arithmetic |
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It's PEMDAS not PEDMAS!!!!!!!!! _________________
@}-,-'- *~*~* Member of the FTU Elegant Tea Party Society *~*~* -'-,-{@
Last edited by Sporkism on Sun Apr 10, 2011 10:11 am; edited 1 time in total |
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Sporkism It's funny that I have a job executing cats and dogs, considering that I AM A WHORE WHO FUCKS FOR MONEY Joined: 05 Jan 2007 Posts: 5369 (Sun Apr 10, 2011 10:10 am) Reply

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Re: Arithmetic |
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Unless you're Theldorrin, the answer is 2.
The end! _________________
@}-,-'- *~*~* Member of the FTU Elegant Tea Party Society *~*~* -'-,-{@ |
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Big Fagot Alpha ape Joined: 09 Jan 2007 Posts: 10545 (Sun Apr 10, 2011 10:13 am) Reply

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Re: Arithmetic |
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Welp, if Wolfram Alpha accepts that gay syntax then that sucks, but it continues to be gay syntax. Written by hand there would be no problem since no one would use diagonal slashes for division on paper; typed, if someone sent me that, it is not good enough and I would send it back for disambiguation. If you want me to destructure an implicit multiplication and give it equal weight in the chain, it needs an operator, even if Wolfram Alpha will muddle through mechanically.
Ace, you're safe in that most people agree with you, but also it seems like you didn't comprehend any of the past 20 posts. |
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Theldorrin Joined: 04 Jan 2007 Posts: 19724 (Sun Apr 10, 2011 10:15 am) Reply

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Re: Arithmetic |
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It's BEDMAS, you bloody yanks. They're brackets, not just parentheses.
And it's not just for me that the answer is 288. That's standard mathematical convention. You can plug the same thing in to Google and Wolfram Alpha and get 288, because that is the standard way to parse that expression.
48÷2(9+3)
=48÷2(12)
=48(0.5)(12)
=24(12)
=288
It actually doesn't matter if you evaluated it left to right or right to left.
=48(0.5)(12)
=48(6)
=288
You can even fiddle around the order of the terms and arrive at the same answer.
=48(12)(0.5)
=576(0.5)
=288 _________________ @}-,-'- *~*~* Member of the FTU Elegant Tea Party Society *~*~* -'-,-{@ |
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Big Fagot Alpha ape Joined: 09 Jan 2007 Posts: 10545 (Sun Apr 10, 2011 10:16 am) Reply

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Re: Arithmetic |
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My Head Hurts 90, what would you say if if were 48/2*(9+3)?
Ms. Kitts, even though M comes before D, the two are treated as a single unit (imagine that) and evaluated together from left to right, so once it's stated reasonably the answer is definitely 288. |
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Theldorrin Joined: 04 Jan 2007 Posts: 19724 (Sun Apr 10, 2011 10:26 am) Reply

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Re: Arithmetic |
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What do you think 2/2(2) is, Peter? _________________ @}-,-'- *~*~* Member of the FTU Elegant Tea Party Society *~*~* -'-,-{@ |
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Big Fagot Alpha ape Joined: 09 Jan 2007 Posts: 10545 (Sun Apr 10, 2011 10:31 am) Reply

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Re: Arithmetic |
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Well, if it's Javascript, it's 2 divided by the result of invocation of the function 2 on the argument 2. If it's C++ then it's 2 divided by a 2 that has been cast to type 2. If it's XPath then I have to use Google. |
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Big Fagot Alpha ape Joined: 09 Jan 2007 Posts: 10545 (Sun Apr 10, 2011 10:39 am) Reply

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Re: Arithmetic |
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I'm sorry, that was disingenuous and serves my own ego more than it serves truth. You deserve better. By the way, what are the names of the two distinct operators you drew attention to, that cause the discrepancy between 2π and 2(π)? We didn't learn those two in American school. |
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Theldorrin Joined: 04 Jan 2007 Posts: 19724 (Sun Apr 10, 2011 11:45 am) Reply

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Re: Arithmetic |
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One is a simplified term, the other is not. They have very distinct meanings in terms of implied brackets.
Observe:
2/2x
= 2 / (2x)
= 1/x
2/2(x)
= (2/2)(x)
= x _________________ @}-,-'- *~*~* Member of the FTU Elegant Tea Party Society *~*~* -'-,-{@ |
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Sporkism It's funny that I have a job executing cats and dogs, considering that I AM A WHORE WHO FUCKS FOR MONEY Joined: 05 Jan 2007 Posts: 5369 (Sun Apr 10, 2011 12:16 pm) Reply

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Re: Arithmetic |
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I know that. I was sure that my succession of extraneous exclamation marks would indicate that I was being facetious, but I'm pretty retarded with math so I can't fault anyone for assuming I wouldn't know! _________________
@}-,-'- *~*~* Member of the FTU Elegant Tea Party Society *~*~* -'-,-{@ |
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Magic Juan Joined: 10 Jan 2007 Posts: 8709 (Sun Apr 10, 2011 12:42 pm) Reply

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Re: Arithmetic |
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Didn't anyone notice that Ace called us all stupid fags, and then had 9+3 = 11?
Go eat shit you stupid faggot. |
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ALDP Joined: 25 Jul 2009 Posts: 4412 (Sun Apr 10, 2011 12:58 pm) Reply

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Re: Arithmetic |
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Ace is the worst |
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Action Hank Yes, I fart dicks. Dicks actually come out of my anus when I fart. Joined: 20 Jan 2007 Posts: 8600 (Sun Apr 10, 2011 1:09 pm) Reply

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Re: Arithmetic |
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Eh, whatever. The math, itself, is still sound. |
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Richard Cristopolis ~~~SNAKE...NOW IT"S MY TURN TO PROTECT YOU~~~ Joined: 03 Feb 2007 Posts: 1859 (Sun Apr 10, 2011 1:18 pm) Reply

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Re: Arithmetic |
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NO, NO IT'S NOT. THAT'S ACTUALLY THE EXACT OPPOSITE OF SOUND. |
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Magic Juan Joined: 10 Jan 2007 Posts: 8709 (Sun Apr 10, 2011 1:18 pm) Reply

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Re: Arithmetic |
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Hey, thanks for spelling out the evaluation (Hehehe) for me there, Ace! |
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Richard Cristopolis ~~~SNAKE...NOW IT"S MY TURN TO PROTECT YOU~~~ Joined: 03 Feb 2007 Posts: 1859 (Sun Apr 10, 2011 1:25 pm) Reply

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Re: Arithmetic |
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Oh, damn. The syntax is always left to right. I got haughty
But at least I'm not FUCKING 3+9 = 11 |
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Richard Cristopolis ~~~SNAKE...NOW IT"S MY TURN TO PROTECT YOU~~~ Joined: 03 Feb 2007 Posts: 1859 (Sun Apr 10, 2011 1:28 pm) Reply

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Re: Arithmetic |
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Math is so much better than English.
I gave the wrong answer, but a simple rule to follow is to put all M and D within brackets.
(48/2)(3+9)
(24)(12)
(288)
288
Last edited by Richard Cristopolis on Sun Apr 10, 2011 1:34 pm; edited 1 time in total |
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Magic Juan Joined: 10 Jan 2007 Posts: 8709 (Sun Apr 10, 2011 1:29 pm) Reply

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Re: Arithmetic |
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Ace claims to understand the situation even though he got 264. |
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