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re: Solve this math problem

Posted on 9/5/17 at 11:26 am to
Posted by LNCHBOX
70448
Member since Jun 2009
86891 posts
Posted on 9/5/17 at 11:26 am to
quote:

It was, because OP was trying to use spacing to indicate 1/3 was a fraction.




quote:

The source of the problem


Don't care. Problem as written in OP has one exact answer: 9.
Posted by buckeye_vol
Member since Jul 2014
35356 posts
Posted on 9/5/17 at 11:26 am to
quote:

It wasn't. It was ambiguous.
It wasn't ambiguous; it was written incorrectly.
quote:

The 1/3 was intended to be a fraction,
Then given the available syntax, it must be written as (1/3).
quote:

Otherwise, if you just type out 3/1/3, it should be evaluated left to right.
Which is how the problem is written within the rules of the syntax.
Posted by klrstix
Shreveport, LA
Member since Oct 2006
3394 posts
Posted on 9/5/17 at 11:27 am to
(no message)
Posted by LNCHBOX
70448
Member since Jun 2009
86891 posts
Posted on 9/5/17 at 11:27 am to
quote:

(No message)


You'll be better off not editing in whatever you were going to try to say.
Posted by Swoopin
Member since Jun 2011
22041 posts
Posted on 9/5/17 at 11:28 am to
Without parentheses there is no dividing by one third in the problem. There's dividing by 1 followed by dividing by 3
Posted by Korkstand
Member since Nov 2003
29002 posts
Posted on 9/5/17 at 11:29 am to
quote:

You know because MDAS addition before subtraction
M&D are on the same "level", as are A&S. Remember, division is just multiplication by a fraction, and subtraction is just addition of a negative number. There's no reason for M to come before D, or A to come before S. They are equivalent operations.
Posted by Scruffy
Kansas City
Member since Jul 2011
75103 posts
Posted on 9/5/17 at 11:30 am to
quote:

Don't care. Problem as written in OP has one exact answer: 9.
Stop assuming that it isn't 3 divided by one third.

Posted by LNCHBOX
70448
Member since Jun 2009
86891 posts
Posted on 9/5/17 at 11:31 am to
quote:

Stop assuming that it isn't 3 divided by one third.


It's not an assumption. It's a fact dictated by order of operations.
Posted by Korkstand
Member since Nov 2003
29002 posts
Posted on 9/5/17 at 11:33 am to
quote:


I know it's silly, but it was clear to anyone paying attention that OP meant to type something other than 3/1/3.
quote:

Don't care. Problem as written in OP has one exact answer: 9.
Problem as written in OP had clear problems of its own. In real life, it's usually best to reason about intent rather than to blindly solve problems and proclaim your superiority.
Posted by Korkstand
Member since Nov 2003
29002 posts
Posted on 9/5/17 at 11:34 am to
quote:

It wasn't ambiguous; it was written incorrectly.
True, it was written incorrectly. It was also written with explicit signs that something other than 3/1/3 was intended.
quote:

Then given the available syntax, it must be written as (1/3).
Agreed, I indicated as much a few posts back.
Posted by go ta hell ole miss
Member since Jan 2007
14026 posts
Posted on 9/5/17 at 11:34 am to
19?
Posted by LNCHBOX
70448
Member since Jun 2009
86891 posts
Posted on 9/5/17 at 11:34 am to
quote:

but it was clear to anyone paying attention that OP meant to type something other than 3/1/3.


Then it's a different problem. The problem as written by OP has an answer of 9.
quote:

In real life, it's usually best to reason about intent rather than to blindly solve problems and proclaim your superiority.




I'm not going to apologize for being able to solve simple math. Saying it's ambiguous is a cop-out. You can argue intent all you want. There is only one answer to the problem in the OP.
Posted by Wayne Campbell
Aurora, IL
Member since Oct 2011
6893 posts
Posted on 9/5/17 at 11:38 am to
quote:

In real life, it's usually best to reason about intent rather than to blindly solve problems and proclaim your superiority.


In math, it's usually best to solve the written problem rather than make blind assumptions based on the inclusion of an additional space.
Posted by LNCHBOX
70448
Member since Jun 2009
86891 posts
Posted on 9/5/17 at 11:39 am to
quote:

In math, it's usually best to solve the written problem rather than make blind assumptions based on the inclusion of an additional space.




Just let him keep digging.
Posted by Scruffy
Kansas City
Member since Jul 2011
75103 posts
Posted on 9/5/17 at 11:39 am to
quote:



It's not an assumption. It's a fact dictated by order of operations.
Scruffy is sorry you chose poorly.
Posted by LNCHBOX
70448
Member since Jun 2009
86891 posts
Posted on 9/5/17 at 11:39 am to
quote:

Scruffy is sorry you chose poorly.


Scruffy should stick to medicine.
Posted by buckeye_vol
Member since Jul 2014
35356 posts
Posted on 9/5/17 at 11:39 am to
quote:

True, it was written incorrectly. It was also written with explicit signs that something other than 3/1/3 was intended.
And remember this OP got an answer of 7, so it was bound to be written incorrectly one way or the other. It's best not to assume then and just solve as presented, until/unless a correctly written problem is provided.
This post was edited on 9/5/17 at 11:41 am
Posted by 50_Tiger
Arlington TX
Member since Jan 2016
42055 posts
Posted on 9/5/17 at 11:40 am to
Why do yall engage with LNCHBOX.

He lives to argue
Posted by LNCHBOX
70448
Member since Jun 2009
86891 posts
Posted on 9/5/17 at 11:40 am to
I really don't get why you're singling me out.
Posted by Placebeaux
Bobby Fischer Fan Club President
Member since Jun 2008
51852 posts
Posted on 9/5/17 at 11:41 am to
Yeah when you dont use it you loae it.
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