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Do you automatically group 2(9+3) ? Like (2(9+3))???
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No you can't do that, because doing so would change what's written.Originally Posted by IRockTMacs
Can't you just re-write thatOriginally Posted by OptimusADL
You arent making sense. 0.5 is 1/2 just different forms of the same number.Originally Posted by balloonoboy
Yea but it doesn't work like that. You can only distribute multiplication. This just so happens to be a part of the parenthetical expression.Originally Posted by OptimusADL
Exactly.
So following that model a/b(c+d) is the same as ((a/b)c+(a/b)d).
There are no parentheses around the b(c+d) so you should be distributing "a/b" or "1/b" not just "b".
1/2x = 1/2(x) = 0.5x
1/2x != 1/(2x)
This is why parentheses are important.
[h3]÷2[/h3]at the start as (1/2) with no repercussions?
If I'm wrong in saying so then my logic is flawed.
No you can't do that, because doing so would change what's written.Originally Posted by IRockTMacs
Can't you just re-write thatOriginally Posted by OptimusADL
You arent making sense. 0.5 is 1/2 just different forms of the same number.Originally Posted by balloonoboy
Yea but it doesn't work like that. You can only distribute multiplication. This just so happens to be a part of the parenthetical expression.Originally Posted by OptimusADL
Exactly.
So following that model a/b(c+d) is the same as ((a/b)c+(a/b)d).
There are no parentheses around the b(c+d) so you should be distributing "a/b" or "1/b" not just "b".
1/2x = 1/2(x) = 0.5x
1/2x != 1/(2x)
This is why parentheses are important.
[h3]÷2[/h3]at the start as (1/2) with no repercussions?
If I'm wrong in saying so then my logic is flawed.
But that isn't the problem. There are no parentheses around the 2(9+3). You can't just assume that. If it was 48 divided by (2(9+3)) then 2 would be the right answer. But it isn't.Originally Posted by JFMartiMcDandruff
48 * (1/(2*(9+3))) = 2
But that isn't the problem. There are no parentheses around the 2(9+3). You can't just assume that. If it was 48 divided by (2(9+3)) then 2 would be the right answer. But it isn't.Originally Posted by JFMartiMcDandruff
48 * (1/(2*(9+3))) = 2
Originally Posted by JFMartiMcDandruff
Do you automatically group 2(9+3) ? Like (2(9+3))???
Okay.Originally Posted by balloonoboy
No you can't do that, because doing so would change what's written.Originally Posted by IRockTMacs
Can't you just re-write thatOriginally Posted by OptimusADL
You arent making sense. 0.5 is 1/2 just different forms of the same number.
1/2x = 1/2(x) = 0.5x
1/2x != 1/(2x)
This is why parentheses are important.
[h3]÷2[/h3]at the start as (1/2) with no repercussions?
If I'm wrong in saying so then my logic is flawed.
48÷2(9+3) =/= 48÷2 x (9+3)
Originally Posted by unique8587
2....Originally Posted by StrongMind3
someone please tell me how this is wrong?
Well. Parentheses are first so its (9+3) which leaves (12). The equation now becomes 48/2 x 12
Because this is a math equation, you will start from left to right. So that means you divide first THEN multiple. The answer is 288.
You guys are doing distribution when you should be dividing first.
PEMDAS It's Multiple or Divide which ever precedes first.
Originally Posted by JFMartiMcDandruff
Do you automatically group 2(9+3) ? Like (2(9+3))???
Okay.Originally Posted by balloonoboy
No you can't do that, because doing so would change what's written.Originally Posted by IRockTMacs
Can't you just re-write thatOriginally Posted by OptimusADL
You arent making sense. 0.5 is 1/2 just different forms of the same number.
1/2x = 1/2(x) = 0.5x
1/2x != 1/(2x)
This is why parentheses are important.
[h3]÷2[/h3]at the start as (1/2) with no repercussions?
If I'm wrong in saying so then my logic is flawed.
48÷2(9+3) =/= 48÷2 x (9+3)
Originally Posted by unique8587
2....Originally Posted by StrongMind3
someone please tell me how this is wrong?
Well. Parentheses are first so its (9+3) which leaves (12). The equation now becomes 48/2 x 12
Because this is a math equation, you will start from left to right. So that means you divide first THEN multiple. The answer is 288.
You guys are doing distribution when you should be dividing first.
PEMDAS It's Multiple or Divide which ever precedes first.
Originally Posted by spacerace
yeah, because you changed the problem when you added parenthesisOriginally Posted by UnkleTomCruze
a: 48/2(9+3) = b: 48/ (2(9+3))
Even if Multi = Division, b shows that you still gotta solve, first, what's in the parenthesis. Which will still lead you to 2.
...
48/2(9+3) =/= 48/ (2(9+3))
288 =/= 2
Originally Posted by spacerace
yeah, because you changed the problem when you added parenthesisOriginally Posted by UnkleTomCruze
a: 48/2(9+3) = b: 48/ (2(9+3))
Even if Multi = Division, b shows that you still gotta solve, first, what's in the parenthesis. Which will still lead you to 2.
...
48/2(9+3) =/= 48/ (2(9+3))
288 =/= 2
Originally Posted by JFMartiMcDandruff
Do you automatically group 2(9+3) ? Like (2(9+3))???
Originally Posted by JFMartiMcDandruff
Do you automatically group 2(9+3) ? Like (2(9+3))???
No the problem is not grouped like (2(9+3)) which why the answer is 288. That's the mistake that they are making.Originally Posted by eddiehouse5
Originally Posted by JFMartiMcDandruff
Do you automatically group 2(9+3) ? Like (2(9+3))???
Yes. The question is not poorly written, some of you are just trying to create new math.
NahOriginally Posted by dmbrhs
Originally Posted by unique8587
2....Originally Posted by StrongMind3
someone please tell me how this is wrong?
Well. Parentheses are first so its (9+3) which leaves (12). The equation now becomes 48/2 x 12
Because this is a math equation, you will start from left to right. So that means you divide first THEN multiple. The answer is 288.
You guys are doing distribution when you should be dividing first.
PEMDAS It's Multiple or Divide which ever precedes first.No it doesn't. You literally just added a symbol that was not part of the equation. The 2 is tied to the parentheses. You must solve everything related to the parenthetical before doing anything else.
NahOriginally Posted by dmbrhs
Originally Posted by unique8587
2....Originally Posted by StrongMind3
someone please tell me how this is wrong?
Well. Parentheses are first so its (9+3) which leaves (12). The equation now becomes 48/2 x 12
Because this is a math equation, you will start from left to right. So that means you divide first THEN multiple. The answer is 288.
You guys are doing distribution when you should be dividing first.
PEMDAS It's Multiple or Divide which ever precedes first.No it doesn't. You literally just added a symbol that was not part of the equation. The 2 is tied to the parentheses. You must solve everything related to the parenthetical before doing anything else.
Yeah, i'm just wondering if you group 2(9+3) automatically ....if that's the case then yeah, but if not then it's 288Originally Posted by snakeyes17
But that isn't the problem. There are no parentheses around the 2(9+3). You can't just assume that. If it was 48 divided by (2(9+3)) then 2 would be the right answer. But it isn't.Originally Posted by JFMartiMcDandruff
48 * (1/(2*(9+3))) = 2