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View Poll Results: 6÷2(1+2) equals what?
1 45 47.37%
7 1 1.05%
9 47 49.47%
No idea 2 2.11%
Voters: 95. You may not vote on this poll

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  #61  
Old 03.06.2011, 12:16
porsch1909
 
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Re: 6÷2(1+2) equals what exactly

I do see where the '1' people are coming from.

But they are wrong.
  #62  
Old 03.06.2011, 12:17
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Re: 6÷2(1+2) equals what exactly

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Even using your model:



You are forgetting that if you multiply out the brackets, you've gotten rid of them...

Or, you're just trolling on this funny Friday
Seriously

The division occurs last. Reduce all the functions, then you have 6/6 , which is 1.
  #63  
Old 03.06.2011, 12:17
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Re: 6÷2(1+2) equals what exactly

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....exactly. When did you last find an arithmetic error on your bank statement or at the ATM?
I've heard that Eco doesn't do bank accounts...he prints money himself.
  #64  
Old 03.06.2011, 12:18
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Re: 6÷2(1+2) equals what exactly

I've really got to disagree with you guys. It is in fact 7.

6÷2(1+2)

lets multiply the brackets out

6÷(2*1)+(2*2)

6÷2+4

Ok the division has priority so:-

3+4 = 7

  #65  
Old 03.06.2011, 12:18
economisto
 
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Re: 6÷2(1+2) equals what exactly

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As I said in my first post 2(2+1) can only be processed as a single function. You cannot separate either 2's or the 1 and then apply it to the first 6. It's 6 / 2(2+1) , thus 6/2(3) , thus 6/6), thus 1.
no it isn't!!!

it's

2+1 (because brackets are always first). this gives 3.

Then you do the exponents or "powers". But there aren't any. So we still have 3.

Then we do division and/or multiplication in the order that they occur left to right. There are two of these. The "2" outside the brackets is multiplying the contents of the brackets because it abuts the brackets. But, it's to the right of the first of these two operators - the division operator. So, we do the division first: 6 divided by 2 is 3. Then we do the multiplication: 3 times 3 is 9.
Then, finally we do the additions and subtractions in the order they occur, left to right, that aren't within brackets. But there aren't any. So we remain with 9.
  #66  
Old 03.06.2011, 12:19
porsch1909
 
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Re: 6÷2(1+2) equals what exactly

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I've heard that Eco doesn't do bank accounts...he prints money himself.
I've heard that economisto doesn't print money....money prints economisto
  #67  
Old 03.06.2011, 12:19
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Re: 6÷2(1+2) equals what exactly

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Remember that these are the guys programming the systems which spit out your cash from the ATM or calculate the quantity of ingredients in your headache pills. Worried?
I can see the benefits of home remedies and keeping my cash in a tin box under my bed already.
  #68  
Old 03.06.2011, 12:19
economisto
 
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Re: 6÷2(1+2) equals what exactly

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lets multiply the brackets out
A great hobby! Like fly fishing or 1000 piece jigsaws. Just not compliant with mathematics.
  #69  
Old 03.06.2011, 12:20
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Re: 6÷2(1+2) equals what exactly

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I've heard that economisto doesn't print money....money prints economisto
I've heard that economisto loans money to the world bank.
  #70  
Old 03.06.2011, 12:21
economisto
 
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Re: 6÷2(1+2) equals what exactly

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The division occurs last.
Evidence please.
  #71  
Old 03.06.2011, 12:21
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Re: 6÷2(1+2) equals what exactly

Having started this thread as a 1 believer, a minimum of research has revealed I was wrong. There is ample proof and explanations even in this thread. The fact that people are holding on to it leads me to believe that if the human race wasn't fighting about race, borders, or religion, we'd be doing it over solutions to math problems.
  #72  
Old 03.06.2011, 12:22
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Re: 6÷2(1+2) equals what exactly

I've worked this out repeatedly and I get 42



  #73  
Old 03.06.2011, 12:24
porsch1909
 
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Re: 6÷2(1+2) equals what exactly

I've never had so many lolz in one thread
  #74  
Old 03.06.2011, 12:26
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Re: 6÷2(1+2) equals what exactly

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I've really got to disagree with you guys. It is in fact 7.

6÷2(1+2)

lets multiply the brackets out

6÷(2*1)+(2*2)

6÷2+4

Ok the division has priority so:-

3+4 = 7

Actually you have to complete what's in the brackets first - that's why it is in brackets, to make sure that you do it before the division/multiplication or other actions.
  #75  
Old 03.06.2011, 12:26
porsch1909
 
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Re: 6÷2(1+2) equals what exactly

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I've really got to disagree with you guys. It is in fact 7.

6÷2(1+2)

lets multiply the brackets out

6÷(2*1)+(2*2)

6÷2+4

Ok the division has priority so:-

3+4 = 7

There are no unknowns in the brackets so why would you do that?

2(x+2) = 6

2x + 4 = 6

2x = 2

x = 1

That's when you would multiply out brackets.
  #76  
Old 03.06.2011, 12:27
economisto
 
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Re: 6÷2(1+2) equals what exactly

Im going to kill myself.
  #77  
Old 03.06.2011, 12:27
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Re: 6÷2(1+2) equals what exactly

Wow, this sort of stuff is why I've never understood maths. And I KNEW I shouldn't have passed GCSE maths, god knows what they marked me on... Probably the drawings I did for the last 45 minutes of the "Mathematical Discussion" bit, I mean, how much can you say about a box of pralines with different kinds of chocolates in it?
  #78  
Old 03.06.2011, 12:28
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Re: 6÷2(1+2) equals what exactly

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Im going to kill myself.
Evidence please..
  #79  
Old 03.06.2011, 12:37
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Re: 6÷2(1+2) equals what exactly

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There are no unknowns in the brackets so why would you do that?

2(x+2) = 6

2x + 4 = 6

2x = 2

x = 1

That's when you would multiply out brackets.
Just to show there's another erroneous way that this expression can be interpreted. Just for the record I'm with the 9 camp.
  #80  
Old 03.06.2011, 12:37
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Re: 6÷2(1+2) equals what exactly

google says 9, so it must be right

http://www.google.com/search?q=6÷2*(1%2B2)
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