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#791
May 4 2011 05:16pm
Quote (L4d @ May 4 2011 06:16pm)
You, too, are changing the original equation to something it is not. Of course what you wrote = 9, but that is not the original equation.


omg yes it is...
type that into a calculator n u will get 9 also
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#792
May 4 2011 05:17pm
Quote (L4d @ May 4 2011 06:14pm)
The left to right is not true... Am I wrong? multiplication should be done before division, therefore one cannot solve this from left to right.


No, it's always left to right. The other one, BEDMAS, is the same thing, it just has division before multiplication in the acronym, but it's still the same old order of operations. Division and multiplication are treated exactly the same in the order of operations, you just solve for whatever comes first in the equation.
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#793
May 4 2011 05:17pm
order of operations
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#794
May 4 2011 05:17pm
Quote (Tmac1010 @ May 4 2011 06:17pm)
order of operations

PEMDAS? If so, it = 1.
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#795
May 4 2011 05:18pm
PEMDAS

Solve for the parentheses. (1+2) = 3. Right? "Yes."
Solve for the exponents. No exponents, so no solving to be done. Right? "Yes."
Solve for the multiplication or division, going from left to right. 6÷2*3 = 9. Right? "I DON'T FUCKING KNOW HELP!!"

/thread
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#796
May 4 2011 05:18pm
lol XD
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#797
May 4 2011 05:19pm
In the form of the original question:

6÷2(1+2)
6÷2*3
3*3
=9

When wrote as:

6/2(1+2)

You can interpret it two ways:

6/2(1+2)
6/2*3 (Again, left to right, / = ÷)
3*3
=9

OR

6(FRACTION)2(1+2)
6/(2*3)
6/6
=1

THE CONCLUSION

The question is poorly wrote and would never appear on an exam like that.
The question would VERY CLEARLY be:
6/2(1+2) or 6/(2(1+2))




This still makes the most sense.
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#798
May 4 2011 05:19pm
Quote (L4d @ May 4 2011 05:17pm)
PEMDAS? If so, it = 1.


idk the way i see it, once you get to 6/2(3) you divide. youve solved inside the parenthesis so now you move from left to right. but i could be wrong.
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#799
May 4 2011 05:19pm
Quote (Tmac1010 @ May 4 2011 03:17pm)
order of operations


do what
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#800
May 4 2011 05:19pm
Quote (L4d @ May 4 2011 06:17pm)
PEMDAS? If so, it = 1.


m is before d so multiply first gawd
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