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re: What's the answer to this math problem?

Posted on 8/2/17 at 3:51 pm to
Posted by JudgeHolden
Gila River
Member since Jan 2008
18566 posts
Posted on 8/2/17 at 3:51 pm to
This is a serious question:

Who decides that order of operations in accepted mathematics? Is it dictated by logic, or is it just something mathematicians go together and agreed upon?
Posted by Breesus
House of the Rising Sun
Member since Jan 2010
69476 posts
Posted on 8/2/17 at 3:51 pm to
quote:

Misspelling intelligence is a pretty good measure.



Is it? I was using the old English spelling. Because of how intellegent I am. Idiot. Interesting that you didn't pick up on that.

quote:

it isn't poorly written if you're testing the understanding of PEMDAS.



Yes. It is. It's written like that on purpose.
Posted by OneMoreTime
Florida Gulf Coast Fan
Member since Dec 2008
61860 posts
Posted on 8/2/17 at 3:51 pm to
I could almost buy 3.6 if the person assumes that the 6 squared is divided by the rest of the equation after the division sign. But 10 is just wrong.
Posted by Breesus
House of the Rising Sun
Member since Jan 2010
69476 posts
Posted on 8/2/17 at 3:52 pm to
quote:

ell_13
Except this isn't one of those.


Lol. Like I'm going to take math advice from a woman. I'll call you when I have a question about laundry or sandwiches.
Posted by PrimeTime Money
Houston, Texas, USA
Member since Nov 2012
27833 posts
Posted on 8/2/17 at 3:53 pm to
6^2
__________

2(3) + 4




36
____________

6 + 4




36
__________

10




36 / 10 = 3.6





Posted by Paddyshack
Land of the Free
Member since Sep 2015
10972 posts
Posted on 8/2/17 at 3:53 pm to
quote:

It's written like that on purpose.

Like a math problem?
Posted by slackster
Houston
Member since Mar 2009
91302 posts
Posted on 8/2/17 at 3:53 pm to
quote:

Who decides that order of operations in accepted mathematics? Is it dictated by logic, or is it just something mathematicians go together and agreed upon?


Pretty sure it is the latter. Basically it is an accepted standard, to my knowledge at least.
Posted by GreatLakesTiger24
Member since May 2012
58887 posts
Posted on 8/2/17 at 3:55 pm to
quote:

I got a C in College Algebra, as evidenced by this thread.


I got an A and answered "10"
Posted by teke184
Zachary, LA
Member since Jan 2007
103111 posts
Posted on 8/2/17 at 3:55 pm to
Parenthesis exponent multiply divide add subtract

6^2 / 2(3) + 4

36 / 6 + 4
6 + 4 = 10
Posted by slackster
Houston
Member since Mar 2009
91302 posts
Posted on 8/2/17 at 3:56 pm to
quote:

I got an A and answered "10"


As long as you get the next 9 questions correct you'll be fine.
Posted by slackster
Houston
Member since Mar 2009
91302 posts
Posted on 8/2/17 at 3:57 pm to
quote:

(Parenthesis) (exponent) (multiply divide) (add subtract)


FIFY. PEMDAS is no different than PEDMSA.
Posted by monkeybutt
Member since Oct 2015
4584 posts
Posted on 8/2/17 at 3:57 pm to
quote:

Parenthesis exponent multiply divide add subtract

6^2 / 2(3) + 4

36 / 6 + 4
6 + 4 = 10



Posted by Paddyshack
Land of the Free
Member since Sep 2015
10972 posts
Posted on 8/2/17 at 3:58 pm to
quote:

Parenthesis exponent multiply divide add subtract

6^2 / 2(3) + 4

36 / 6 + 4
6 + 4 = 10


Posted by PrimeTime Money
Houston, Texas, USA
Member since Nov 2012
27833 posts
Posted on 8/2/17 at 3:58 pm to
quote:

Parenthesis exponent multiply divide add subtract
Why do you multiply before you divide?

Multiplication and division are interchangeable. So are addition and subtraction. It's whatever comes first.


P
E
D|M
S|A

^^^ That's just as accurate as PEMDAS.
This post was edited on 8/2/17 at 3:59 pm
Posted by Rhino5
Atlanta
Member since Nov 2014
30790 posts
Posted on 8/2/17 at 3:58 pm to
quote:

Parenthesis exponen

Someone said since the parentheses contain only one number it doesn't get calculated first and serves only as a multiplication symbol.
Posted by CarRamrod
Spurbury, VT
Member since Dec 2006
58281 posts
Posted on 8/2/17 at 3:59 pm to
quote:

Multiplication then Division
no those can be done in either order.

the question here is weather you should divide by 2 or by 6. the parenthesizes dictates the 2(3) is under 6^2.
Posted by Lazy But Talented
Member since Aug 2011
15029 posts
Posted on 8/2/17 at 4:00 pm to
I got 58.

Small victory for today.
Posted by CarRamrod
Spurbury, VT
Member since Dec 2006
58281 posts
Posted on 8/2/17 at 4:00 pm to
quote:

Someone said since the parentheses contain only one number it doesn't get calculated first and serves only as a multiplication symbol.
that someone is wrong.
Posted by cgrand
HAMMOND
Member since Oct 2009
46419 posts
Posted on 8/2/17 at 4:00 pm to
6-squared is 36
36/10=3.6

is that not right?
Posted by Breesus
House of the Rising Sun
Member since Jan 2010
69476 posts
Posted on 8/2/17 at 4:01 pm to
quote:

FIFY. PEMDAS is no different than PEDMSA.



OK. Then why isn't the 4 in the denominator?
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