If the Coli don’t get this math problem right….

[mag357]

I'm seeing there's a debate going on. I'm trying to read the replies. Some nikkaz is saying 9.
Which I don't understand.

Someone elaborate on why. Thanx

 

[Majestyx]

Nah, they changed the formula in the 1920's.....at least up here in the Tri-State.

​

You right, but the school i went to was broke as shyt, and math was ass there. That update ain’t trickle down sadly Cleveland inner city got some of the WOAT schools

 

[Dafunkdoc_Unlimited]

I'm seeing there's a debate going on. I'm trying to read the replies. Some nikkaz is saying 9.
Which I don't understand.

Someone elaborate on why. Thanx

Click spoiler.....​

Spoiler

 

[Numpsay]

Why did they teach it different ways?

In our lifetime this has always been taught correctly the same way. Anybody that taught you in a way that resulted in you getting the wrong answer to this problem was just flat out wrong themselves.

And as I predicted earlier in this thread. You can literally put this problem as presented into a calculator or computer and get the correct answer. It's quite the phenomenon that people can't adjust the way of looking at something when they are presented with new information they were ignorant to before.

 

[Secure Da Bag]

9?

9

Solve the parenthesis. Then solve from left to right.

 

[cyndaquil]

I'm seeing there's a debate going on. I'm trying to read the replies. Some nikkaz is saying 9.
Which I don't understand.

Someone elaborate on why. Thanx

How they get 9:
6 / 2(2+1)
6 / 2 * 3
At this step they remove the parentheses and do implied multiplication and evaluate left to right. they are dividing 6 by 2 first and getting 3 so now it's
3(3) which is equal to 9.

In higher level mathematics multiplication by adjacency to parentheses tends to take precedence over multiplication from left to right and a division sign isnt used so it would instead be treat we as a fraction like this and become this:
6 /2(2+1) can be simplified to
6 / 2(3)
Thus the fraction 6 / 6
Which would give you 1.

It can be fixed to make the problem less ambiguous by writing it in fractional notation using the method @Arithmetic posted in his solution.

Long story short the answer is 1 but 9 is acceptable as well.

 

[Fill Collins]

I have faith in you Coli brehs

PEMDAS:

P: (1+2) = 3
E: no
M: 2(3) = 6
D: 6/6 = 1

The answer is 1

 

[Rick Fox at UNC]

It is purposefully ambiguous.

As written, it’s saying 6 ÷ 2 * (1 + 2) and the answer is 9.

The “P” in PEMDAS only refers to what’s inside of the parentheses. Also the M and D are on the same level. You don’t do multiplication before division by rule, you do whichever comes first reading left to right.

This guy trying to give a shyt lesson on PEMDAS, when the rules are well known. PEMDAS isn't the basis of my answer.

If the problem is purposefully ambiguous, it isn't a math problem, it is an interpretation problem, which means it has no clear answer.

In math, things are written a certain way to avoid ambiguity. All about clarity and rigor.

 

[Rick Fox at UNC]

It’s 9… its 1 if you went to a school that used old ass text books in the 80’s

By "old ass text books", you mean the ones students currently taking university and grad-level math use?

 

[Majestyx]

By "old ass text books", you mean the ones students currently taking university and grad-level math use?

If they still got that shyt in there, then it’s wrong breh. Like the one breh said, they changed that up in 1920 or some shyt. Write a letter to your councilman and get well soon

 

[Rick Fox at UNC]

If they still got that shyt in there, then it’s wrong breh. Like the one breh said, they changed that up in 1920 or some shyt. Write a letter to your councilman and get well soon

Yikes.

 

[MikelArteta]

let me see
opens chatgpt

 

[cobra]

chatgpt says 9

 

[Numpsay]

How they get 9:
6 / 2(2+1)
6 / 2 * 3
At this step they remove the parentheses and do implied multiplication and evaluate left to right. they are dividing 6 by 2 first and getting 3 so now it's
3(3) which is equal to 9.

In higher level mathematics multiplication by adjacency to parentheses tends to take precedence over multiplication from left to right and a division sign isnt used so it would instead be treat we as a fraction like this and become this:
6 /2(2+1) can be simplified to
6 / 2(3)
Thus the fraction 6 / 6
Which would give you 1.

It can be fixed to make the problem less ambiguous by writing it in fractional notation using the method @Arithmetic posted in his solution.

Long story short the answer is 1 but 9 is acceptable as well.

The bolded sounds like something Trump would say when he was told he answered the question incorrectly.

 

[badhat]

The problem is the use of "÷" leads to confusion like this, and this equation is intentionally written around that ambiguity to make it confusing. The (1+2) is in the dividend, but it's grouped to make it seem like it would be in the divisor with the 2.