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Emne: 48÷2(9+3)=??? 2 or 288 |
1376 svar
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Quote ( Emre Demir @ April 19th 2011,17:33:58 )
The answer is 288 definately.
agree,,,Quote ( Marcin Milczarek @ April 19th 2011,18:45:46 )
Order is not:
- muliply
- divide
but:
- multiply & divide
if there are two or more operations with equal precedence in these case multiplication and division , those operations should be done from left to right
48 ÷ 2 * (9+3)=
48 ÷ 2 * (12)=
48 ÷ 2 * 12=
24 * 12=288
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#843 Skrevet Apr 19 2011, 19:20:27 (senest redigeret Apr 19 2011, 19:21:20 af Daryl Gee)
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Quote ( Luke Czarnocki @ April 19th 2011,18:57:06 )
OMG, it is not adding brackets
It so is. These ones:
Quote ( Luke Czarnocki @ April 19th 2011,18:50:18 )
So in this case it should be write: (48/1)*(1/ ( 2(9+3) ) )=2 Think about this in that way.
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Quote ( Luke Czarnocki @ April 19th 2011,18:50:18 )
So in this case it should be write: (48/1)*(1/(2(9+3)))=2 Think about this in that way.
Your mistake is that it is correctly (48/1)*(1/2x) and NOT (48/1)*(1/(2x)).
We had that before with the example of the more simplier
48/2x
which is
48/2*x
which is
24*x (resp. 24x)
... resp. if you want to point explicitely on
Quote ( Luke Czarnocki @ April 19th 2011,18:50:18 )
division is in fact a multiplication fractions
then it is
48/2x
=
48*x
_____
2
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Quote ( Michael Winkley @ April 19th 2011,18:39:23 )
Only took you 8^2+2(4+3) posts to get to that point.
Or 9.35% of the posts in the thread if you like it that way.
heh..
Quote ( Lukas Jonaitis @ April 19th 2011,18:40:06 )
Theo take a shower your attitude stinks
maybe, why don't you look through all pages and see my posts, and then say if my attitude stinks :)
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The equation is not
48
---*(9+3)
2
it´s
48
--------
2(9+3)
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Quote ( Theo Poufinas @ April 19th 2011,19:24:56 )
Theo take a shower your attitude stinks
Hey be careful in what are you saying dude.. ;) Because I'm here! ;)
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Quote ( Marcin Milczarek @ April 19th 2011,18:45:46 )
You can't calculate in this way: 48/2(9+3) = 48/ (2*9 +2*3).
This is wrong.
First You need to do brackets: (9+3) = 12.
Now calculate 48/2*12.
Math's rules order to begin from left to right, if statement has multiply and divide, cos muliply and divide are equal.
Is someone taught to you how remove the brackets???
First you need remove de brackets
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We dont need to argue anymore because almost everyone knows the answer now
which is 288. Which make this topic useless
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Quote ( Peter Holy @ April 19th 2011,19:32:08 )
48
--------
2(9+3)
No it's not.
Last time I checked:
48÷2(9+3)
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Quote ( Luis Berenguer @ April 19th 2011,21:15:42 )
Quote ( Marcin Milczarek @ April 19th 2011,18:45:46 )
You can't calculate in this way: 48/2(9+3) = 48/ (2*9 +2*3).
This is wrong.
First You need to do brackets: (9+3) = 12.
Now calculate 48/2*12.
Math's rules order to begin from left to right, if statement has multiply and divide, cos muliply and divide are equal.
Is someone taught to you how remove the brackets???
First you need remove de brackets
I know it should be calculated in different way, like here:
... but I showed it in short, simple way.
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Quote ( Marcin Milczarek @ April 20th 2011,15:16:30 )
Quote ( Luis Berenguer @ April 19th 2011,21:15:42 )
Quote ( Marcin Milczarek @ April 19th 2011,18:45:46 )
You can't calculate in this way: 48/2(9+3) = 48/ (2*9 +2*3).
This is wrong.
Definately wrong the answer is 288.
I'm gonna tell it 288 times then I'll stop it.
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If it were 48/(2*(9+3)) then it would be 2.
But as its 48/2*(9=3) it is 288.
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Quote ( Daniel Bassett @ April 20th 2011,21:07:29 )
If it were 48/(2*(9+3)) then it would be 2.
also its a bad rotation
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it´s 2. There´s a reason why it isnt 2*(9+3), but 2(9+3).
But I don´t think that changes your opinion...
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Quote ( Marvin Mackenberg @ April 20th 2011,21:11:44 )
There´s a reason why it isnt 2*(9+3)
absolutely.
you know thats all about simple math.
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Really 48/2(9+3)=y
9+3=x so x=12
48/2x
48/2x
So 2*12
=24
so 48/24=2
If there a space between the 2 and the x, which there isn't, it would be 288. As there isn't, its 2.
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Quote ( Daniel Bassett @ April 20th 2011,21:18:36 )
its 2.
Dude I don't want to attack but you should start from primary school..
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Come on Emre, it's waste of time :]
Looks like they see difference between 2X and 2*X .
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Topic: 48÷2(9+3)=??? 2 or 288
Apply the rules of order
1. Solve in brackets
48/2(2+9) = 48/2(12)
2. Multiply
48/2(12) = 48/24
3. Divide
48/24 = 2
The answer is 2. There is no other correct answer.
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Quote ( Marcin Milczarek @ April 21st 2011,18:56:55 )
Come on Emre, it's waste of time :]
Looks like they see difference between 2X and 2*X .
I hope so Marcin :)
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#865 Skrevet Apr 21 2011, 22:20:55 (senest redigeret Apr 21 2011, 22:23:58 af Daryl Gee)
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And the answer is...
2 ------------> 397 votes (42.5%)
288 ---------> 430 votes (46%)
interesting... :)
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There aren't any other way to remove the brackets:
48/2(9+3)
48/(2*9 + 2*3)
48/24
2
This is the correct way. People who says 288 don't know remove brackets in maths
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#869 Skrevet Apr 21 2011, 22:26:17 (senest redigeret Apr 21 2011, 22:26:47 af Leo Bossio)
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The monkey method:
If Google says 288 then I say 288.
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Leo, you typed it wrong. It's not 2*(9+3), it's 2(9+3).
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