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View Poll Results: 48/2(9+3) = ???
48/2(9+3) = 2 11 55.00%
48/2(9+3) = 288 9 45.00%
Voters: 20. You may not vote on this poll

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Old 01-12-2017, 12:58 PM
 
18,134 posts, read 25,311,830 times
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Old 01-12-2017, 01:00 PM
 
18,134 posts, read 25,311,830 times
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I say that the answer is 2

(9+3) is in the denominator because it's multiplying 2
 
Old 01-12-2017, 01:02 PM
 
Location: At my house in my state
638 posts, read 979,533 times
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288 because it goes left to right, after the parenthesis.


(9+3) = 12


now you have 48/2 (12)


you still read this left to right therefore 48/2 = 24


24(12) = 288.
 
Old 01-12-2017, 01:38 PM
 
18,134 posts, read 25,311,830 times
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It's not reading
You are ignoring the fact that 2 is multiplying 12

You are taking 48/2x12 and changing it to 48x12/2
 
Old 01-12-2017, 02:00 PM
 
Location: Not where I want to be
24,509 posts, read 24,214,643 times
Reputation: 24282
WTH is that? New math? What, in REAL "English", is the equation? What is that crap in parenthesis?
 
Old 01-12-2017, 04:07 PM
eok
 
6,684 posts, read 4,256,260 times
Reputation: 8520
The issue is precedence. You have to know the rules of precedence to read such equations. Those rules are arbitrary. Everyone has to agree on them. Just like laws people have to obey, even when the laws seem silly.

If the rules of precedence say multiplication and division are equal precedence, and the precedence is from left to right, the 48/2(9+3) is read as if it were written (48/2)(9+3).

So the whole debate is about how to read the equation. And that depends only on the rules. So it's a debate about rules. But the debate question doesn't say whether the issue is what the rules should be, or what the rules are, or what. In other words, what are we debating? Or is this even a debate at all? It looks more like a poll.
 
Old 01-12-2017, 04:45 PM
 
Location: State of Transition
102,234 posts, read 108,040,687 times
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Quote:
Originally Posted by scarecrow- View Post
288 because it goes left to right, after the parenthesis.


(9+3) = 12


now you have 48/2 (12)


you still read this left to right therefore 48/2 = 24


24(12) = 288.
This is how I read it.
 
Old 01-12-2017, 04:46 PM
 
Location: State of Transition
102,234 posts, read 108,040,687 times
Reputation: 116200
Quote:
Originally Posted by eok View Post
The issue is precedence. You have to know the rules of precedence to read such equations. Those rules are arbitrary. Everyone has to agree on them. Just like laws people have to obey, even when the laws seem silly.

If the rules of precedence say multiplication and division are equal precedence, and the precedence is from left to right, the 48/2(9+3) is read as if it were written (48/2)(9+3).

So the whole debate is about how to read the equation. And that depends only on the rules. So it's a debate about rules. But the debate question doesn't say whether the issue is what the rules should be, or what the rules are, or what. In other words, what are we debating? Or is this even a debate at all? It looks more like a poll.
The topic is asking what the answer to the equation is according to the existing rules, not according to what anyone wants them to be. lol


Why is this in "Great Debates"?
 
Old 01-12-2017, 05:07 PM
 
Location: Austin
15,649 posts, read 10,405,925 times
Reputation: 19557
If I remember correctly, parenthesis are always solved first. So the answer is 2.
 
Old 01-12-2017, 05:14 PM
 
Location: State of Transition
102,234 posts, read 108,040,687 times
Reputation: 116200
Quote:
Originally Posted by texan2yankee View Post
If I remember correctly, parenthesis are always solved first. So the answer is 2.
"scarecrow" did solve the equation in parenthesis first. S/he got 288. It's about what you do after you solve the parenthetical equation first.
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