 48/2(9+3) = x  


48/2(9+3) = x  x = 288   52%  [ 12 ]  x = 2   48%  [ 11 ] 
 Total Votes : 23  

Author  Message 

_Melissa. Knight
Posts : 1501 Join date : 20100920 Location : Micronesia
Character sheet DDO character: RK Profession: None
 Subject: Re: 48/2(9+3) = x Tue Apr 12, 2011 9:06 am  
 lol huh? 288/ 48= 6... Which isn't needed to calculate that lol =)
Hope my 2 was correct, being wrong sucks but otherwise wanna know so I can be right.
The way I saw it was outside number of bracket, times inside bracket numbers. To create multiplied version of new figures in the bracket. That whole new bracket of numbers gets divided by the outside number, which is before the slash.
Sometimes there's possibly more than 1 answer that can be given credit to though for different answers, which can be the case with financial ratios. As there's different ratios sometimes taking into account net income for profit etc. As long as the working out is there, should be OK and reasonable justification as to how the answer was found. http://en.wikipedia.org/wiki/Financial_ratio#Ratios 

 
anto_capone Royal
Posts : 16424 Join date : 20100911 Age : 38 Location : Che cazzo fai?
Character sheet DDO character: Ranger RK Profession: Blacksmith
 Subject: Re: 48/2(9+3) = x Tue Apr 12, 2011 9:11 am  
 It's funny tho, engineers and mathematicians are arguing this all over the place on the interwebs... _________________ 

 
_Melissa. Knight
Posts : 1501 Join date : 20100920 Location : Micronesia
Character sheet DDO character: RK Profession: None
 Subject: Re: 48/2(9+3) = x Tue Apr 12, 2011 9:19 am  
  anto_capone wrote:
 It's funny tho, engineers and mathematicians are arguing this all over the place on the interwebs...
Personally I find this interesting and think about it whilst cutting an orange, going wow... Skip to after 1min http://www.metacafe.com/watch/769025/270_degree_triangle_yes_3_right_angles/ 

 
Telcara Squire
Posts : 683 Join date : 20100917 Location : At the computer
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 Subject: Re: 48/2(9+3) = x Tue Apr 12, 2011 2:33 pm  
 

 
Edwin Commoner
Posts : 166 Join date : 20100923
Character sheet DDO character: RK Profession: Weaver
 Subject: Re: 48/2(9+3) = x Wed Apr 13, 2011 11:35 am  
  anto_capone wrote:
 48
___ 2(9+3)
The answer is 2 for that one. 

 
Elois Noble
Posts : 2892 Join date : 20100913 Age : 36 Location : Antarctica
Character sheet DDO character: RK Profession: Carpenter
 Subject: Re: 48/2(9+3) = x Wed Apr 13, 2011 11:44 am  
 I always learned it as PEMDAS. Funny to know there's a different name for it. I dont remember shit that I learned so I'm inclined to say the answer is 24. Parentheis added, then each number outside them multplied by 12 separately and divided.
9+3=12 12*2=24 48*12=576 576/24=24
But then again, I don't remember the rules and it could be that only 2 is multiplied what is in the parenthesis and then it's all added and divided.
Damned soggy memory. 

 
Edwin Commoner
Posts : 166 Join date : 20100923
Character sheet DDO character: RK Profession: Weaver
 Subject: Re: 48/2(9+3) = x Wed Apr 13, 2011 1:54 pm  
  Elois wrote:
 I always learned it as PEMDAS. Funny to know there's a different name for it. I dont remember shit that I learned so I'm inclined to say the answer is 24. Parentheis added, then each number outside them multplied by 12 separately and divided.
9+3=12 12*2=24 48*12=576 576/24=24
But then again, I don't remember the rules and it could be that only 2 is multiplied what is in the parenthesis and then it's all added and divided.
Damned soggy memory.
You basically made: 482 or even 48 * 122 * 12 which is an error as: 1212 gives 1 and not 12 you have calculated earlier. 

 
anto_capone Royal
Posts : 16424 Join date : 20100911 Age : 38 Location : Che cazzo fai?
Character sheet DDO character: Ranger RK Profession: Blacksmith
 Subject: Re: 48/2(9+3) = x Wed Apr 13, 2011 3:10 pm  
  Edwin wrote:
 anto_capone wrote:
 48
___ 2(9+3)
The answer is 2 for that one.
its the same thing tho.. the only symbol there is the division symbol, so it can be properly expressed as a fraction. unless you think it is 48 ___ (9+3) 2 But that means it should have been written as 48/2X12 instead of implying the multiplication no? the 2(9+3) needs to be simplified first i think... _________________ 

 
Elois Noble
Posts : 2892 Join date : 20100913 Age : 36 Location : Antarctica
Character sheet DDO character: RK Profession: Carpenter
 Subject: Re: 48/2(9+3) = x Wed Apr 13, 2011 3:19 pm  
 You come tutor me, Edwin? 

 
Sephrenia Citizen
Posts : 442 Join date : 20100920
Character sheet DDO character: RK Profession: Baker
 Subject: Re: 48/2(9+3) = x Wed Apr 13, 2011 3:38 pm  
 288 by the way I learned it. I was always taught we didn't need a multiplication symbol between a number and a bracket  it being there implied that it was to multiply the result of the brackets. 

 
Edwin Commoner
Posts : 166 Join date : 20100923
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swampi Commoner
Posts : 86 Join date : 20100925
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 Subject: Re: 48/2(9+3) = x Thu Apr 14, 2011 3:20 pm  
 unless they really changed the math since i was in school in my head real fast i came up with 2
i graduated hs in 72 

 
Toasti Jen Noble
Posts : 2348 Join date : 20100913 Age : 40 Location : West Coast, US
Character sheet DDO character: Barbarian RK Profession: Blacksmith
 Subject: Re: 48/2(9+3) = x Mon Apr 18, 2011 2:48 pm  
  Telcara wrote:
 ... *head explodes*
*nods* Actually, I am contemplating crawling under the desk and crying. I am gearing up to study for the GRE (yup, I have to get ready to get ready) and am having massive anxiety about the math portion. I'd love a tutor, but am terribly embarassed as to how stupid I am about numbers. Instead, I will partially read your posts in awe and confusion. 

 
Stalvan Commoner
Posts : 163 Join date : 20101017 Age : 34 Location : Arstotzka
Character sheet DDO character: RK Profession: None
 Subject: Re: 48/2(9+3) = x Mon Apr 18, 2011 5:34 pm  
  James wrote:
 Bekah wrote:
 Under the principals of bodmas, brackets get calculated first so that would be the 9 + 3 = 12, then you have to do the division and multiplication, left to right so you have 48 /2 = 12 x 12 = 288 So it seems that the logic function of a couple of those calculators is incorrectly input. Just goes to show you that the brain is not about to replaced anytime soon
Right answer Bekah, but 48/2 is 24 not 12
x = 48 / 2 (9 + 3) x = 48 / 2 (12) < Brackets are first x = 24 * 12 < Division and Multiplication from left to right so first 48 / 2 x = 24 * 12 < then 24 * 12 x = 288
This is the correct answer to the thread title as written. You take care of brackets first and then it must be interpreted as " 48 / 2 * 12 = x " and you have to calculate from left to right, division and multiplication commands bearing the same weight. The problem is that in calculators and on forums because of line spacing and all that, we don't have a good way of consistently expressing  anto wrote:
48 ______ =x 2(9+3)
Which for the answer indeed is 2. It's the same as writing it like this: In anto's example, 2(9+3) is the denominator. It's not the same as " 48/2(9+3) = x "; When expressed this way, it's not a fraction, or in other words the whole equation has a denominator of 1. 

 
Bekah Noble
Posts : 3342 Join date : 20100913 Age : 46
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 Subject: Re: 48/2(9+3) = x Tue Apr 19, 2011 5:52 pm  
 My hero!
*flutters her eyelashes at him* _________________ 

 
anto_capone Royal
Posts : 16424 Join date : 20100911 Age : 38 Location : Che cazzo fai?
Character sheet DDO character: Ranger RK Profession: Blacksmith
 Subject: Re: 48/2(9+3) = x Tue Apr 19, 2011 8:43 pm  
 So this mathematician is wrong?  Quote :
The distributive property of multiplication CLEARLY states that the 2(9+3) is an entire statement and CANNOT be broken up. 2(9+3) follows the distributive property which can be rewritten as (2*9+2*3). Let me repeat the 2 outside of the parenthesis follows the distributive property of multiplication and must be factored and simplified before performing any other operations on it. You do NOT compute this expression from left to right until you use Algebra to simplify the statement 2(9+3).
So this can be rewritten as: 48 / (2*9 + 2*3)
Which leaves us with
48 / 24 = 2
Answer = 2.
_________________ 

 
Bekah Noble
Posts : 3342 Join date : 20100913 Age : 46
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 Subject: Re: 48/2(9+3) = x Tue Apr 19, 2011 9:02 pm  
 must be _________________ 

 
Stalvan Commoner
Posts : 163 Join date : 20101017 Age : 34 Location : Arstotzka
Character sheet DDO character: RK Profession: None
 Subject: Re: 48/2(9+3) = x Tue Apr 19, 2011 9:29 pm  
 Anto is correct here in the technical sense  brackets don't necessarily indicate algebraic expression, but solving for X does. The problem is in the way the problem is expressed in the thread title
48/2(9+3) = x
There are no variables in the subject  it's a monomial equation and I wouldn't be compelled to distribute the 2 through the parentheses with the problem spaced like that. It's better written with spacing,
48 / 2(9+3)
then it's understood the way Anto says (and generally if it's expected you'll distribute through a side of an equation with no variables it will be expressed with brackets, not just parentheses)
48 / [2(9+3) + 0] = x
I wouldn't mark anyone off for answering 288. Spacing is important 

 
Edwin Commoner
Posts : 166 Join date : 20100923
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Aidan Noble
Posts : 2371 Join date : 20100914 Age : 22
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 Subject: Re: 48/2(9+3) = x Thu May 19, 2011 8:53 pm  
 The answer is two. EDIT: I should probably say why I thinks its two since all the adults are doing it. But, now that you bastards made me over think it. My opinion is that 288 and 2 48/2(9+3) = 2 48/2(12) 48/24=2 Thats the answer I'd pick. But it could by the way i was thought BIRDMAS 48/2(9+3) = 288 48/2(12) 12(12) = 288 ACTUALLY.... I just realised why it can't be 288 even with birdmas... The bracket is still there last and they have to go first so it has to be 2. Errrr, right? _________________ IG NAME: "Aidann." 

 
Absence Serf
Posts : 3 Join date : 20110514
 Subject: Re: 48/2(9+3) = x Mon May 23, 2011 5:08 pm  
 I think this is 288, but i change my mind . This is 2 (if you look in other side) Because this (can be) isnt 48  x (9+3) 2 This (can) be 48  2(9+3) so the answer is simple I think this is about how we look at this 

 
Bekah Noble
Posts : 3342 Join date : 20100913 Age : 46
Character sheet DDO character: RK Profession: Blacksmith
 Subject: Re: 48/2(9+3) = x Mon Apr 15, 2013 3:36 pm  
 I thought I would test people's maths skills once again. What is the answer to this problem? 4 x 4 + 4 x 4 +4  4 x 4 = ? And don't worry, 73% of people get it wrong _________________ 

 
Trinity Noble
Posts : 3071 Join date : 20100916 Age : 35 Location : Planet Earth
Character sheet DDO character: Paladin RK Profession: Butcher
 Subject: Re: 48/2(9+3) = x Mon Apr 15, 2013 7:33 pm  
  Bekah wrote:
 I thought I would test people's maths skills once again. What is the answer to this problem?
4 x 4 + 4 x 4 +4  4 x 4 = ?
And don't worry, 73% of people get it wrong
20? (took me forever! lol and I still don't think it's right haha) Holy crap, had an awful vision of me in math class 15+yrs ago...*shudders* _________________ 

 
Aoife Commoner
Posts : 66 Join date : 20120902
 Subject: Re: 48/2(9+3) = x Tue Apr 16, 2013 3:39 am  
 I think Trinity is right.
4 x 4 + 4 x 4 +4  4 x 4 = ?
16 + 16 + 4  16 = ?
36  16 = 20 

 
Roxxane Royal
Posts : 5095 Join date : 20100912 Location : Undisclosed
Character sheet DDO character: RK Profession: Carpenter
 Subject: Re: 48/2(9+3) = x Wed Apr 17, 2013 5:04 am  
  Bekah wrote:
 I thought I would test people's maths skills once again. What is the answer to this problem?
4 x 4 + 4 x 4 +4  4 x 4 = ?
And don't worry, 73% of people get it wrong
16+ 16 + 4  16 = 36  16 = 20 I think Aoife is right that Trinity is right :) The rule is you do exponents first, then square roots then parenthesis then multiplication then division the addition then subtraction _________________ 

 
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 Subject: Re: 48/2(9+3) = x  
 

 
 48/2(9+3) = x  
