Math: 6÷2(1+2) = ?

the only way the answer is 1 is if the problem was stated like this:

6÷[2(1+2)]=



Since that is not the original problem the answer is 9!

You put it in WRONG


6 divided by 2 * (1+2)

NOW DO PEMDOS

NO

Order of operations!

That means you do not need the extra brackets

Wtf are people on?

Parentheses first (1 + 2) equals 3

Multiplication 6 divided by 6 ----------- 6 * 2(3) --------- 6 divided by 6

then Divide

PEMDOS

it even says it in plain ENGLISH...divided BY meaning whatever the fuck is after the word BY

Divided by....MEANS whatever is after the word BY

Also use PEMDOS

mr 844 for the love of humanity go and plug the formula in excel or a calculator or an online math tool

you wont get 1 as an answer

9

You do your parentheses first which is 1 + 2 which equals 3.

Then do 6/2 which equals 3

Then multiply 3 *3 which equals 9

Still 1

First of all it's PEMDAS not PEMDOS

Second: Parentheses means INSIDE THE PARENTHESES !!!!

What are you on?

TI-85 most definitely gives you '1'

A TI-86 gives you '9'

Wrong wrong wrong wing wong

In English it is:
- 6 divided by 2, multiplied by 1 plus 2
- gives 3, multiplied by 3 (second half done first because of brackets)
- gives 9

PLEASE STOP THE FAIL ITS MAKING ME NAUSEOUS

nine

people, you always calculate the stuff in (...) first, and then the rest of the sequence

TI-85 was made in the USA
TI-86 its successor was made in the PRoC


:)
no just joking.

It would seem to be much ado about 'nine,'- 'nein...' Was there originally a point to this little exercise?

1+1=2

Discuss.

Most calculators are meant to go left to right

They do not follow order of operations

You must "reword" the problem so the calculator can calculate for you.

Basic math skills taught in every school. How to Properly use a calculator.

All my math teachers have told me the same thing. You must redesign the equation so that you calculator can PROPERLY calculate.

Theres a even a class in most college's that is dedicated to teaching how to use multiple calculators

For example...

an excerpt from a website...
[link to math.about.com]

"Does It Make a Difference? What If I Don't Use the Order of Operations?

Mathematicians were very careful when they developed the order of operations.
Without the correct order, watch what happens:

15 + 5 X 10 -- Without following the correct order, I know that 15+5=20 multiplied by 10 gives me the answer of 200.

15 + 5 X 10 -- Following the order of operations, I know that 5X10 = 50 plus 15 = 65. This is the correct answer, the above is not!"

So please don't tell me I am wrong

Just shut up. Go to google...type in Calculators and order of operations...


Doesnt fuckin matter the answer is 1

you must also REALIZE that divided by whatever is after the word by in the ORDER OF OPERATIONS

BASIC MATH

Christ Almighty!

Is this thread still alive?

The answer is still 9

I passed this one to a cousin who is a University professor and he said that in order to compute the right answer in cases where an equation can be interpreted in more than one way, is to know the exact logical problem we are trying to solve with this equation. We need the context here.

That is the sloppiest notation ever...No one in their right mind would write it that way...

Let's approach from a different angle. For your sake, Mr. Talks-A-Lot but provides no evidence.

Let's make this into an algebraic equation.

Your version:

6÷2(1+2) = 9

Let's replace that 2 with the variable "x"

6÷x(1+2)=9
6÷3x=9
6÷3x(3x)=9(3x)
6=27x
6/27=27x/27
2/9=x

Ok... Now we changed the equation to 6÷(2/9)(1+2)

Here, let's try substituting. This time 6 for x.

x÷2(1+2)=9
(x÷2)(3)/3=9/3
x÷2(2)=3(2)
x=6

This substitution does in deed get us back to our original equation: 6÷2(1+2)

1-1

Let's try one more substitution, for Sweden's sake.

6÷2(x+2)=9
6÷2x+4-4=9-4
6÷2x=5
6÷2x(2x)=5(2x)
6/10=10x/10
3/5=x

1-2

Now, the truth:

6÷2(1+2)=1

Same substitution will be applied, only showing the math.

6÷x(1+2)=1
6÷3x(3x)=1(3x)
6=3x
6/3=3x/3
x=2

OG Equation: 6÷2(1+2)=1

x÷2(1+2)=1
x÷2(3)=1
x÷6=1
x÷6(6)=1(6)
x=6

OG Equation: 6÷2(1+2)=1

6÷2(x+2)=1
(6÷2x+4=1)-4
(6÷2x=-3)2x
6=-6x
-1=x

...I can't even verify that. Someone else continue and double check the math.

However 2-0

.

The problem is... that OP is stupid and doesnt use brackets so this discussion is a waste of time

You are wrong. WRONG

Did any of you actually go to the Mathematics page?
[link to math.about.com]
Basic Math. Read it.

It is 9 and there is no denying it. You MUST follow the proper order of operations, otherwise you will get a WRONG answer.

All who say it is 1 please PLEASE don't build anything or become doctors, engineers, work with computers, program, fly, drive, anything

let's look at it this way:

let
x = (1+2)

6/2(x)
6/2(1+2)
6/(2+4)
6/6
1

I rest my case

Sorry OP but you are incorrect.

In proper mathematics:
6÷2(1+2)
the bracketed operation MUST be done first
(in a calculator, you would enter those first)
6÷2(3)
then you do multiplication and division, in order as they appear
6÷2(3) can also be written correctly as
6÷2*3 since both operations are forms of multiplication
therefore
3*3
9
Quod Erat Demonstrandum

Please listen to your intellectual superiors. Thank you.

Basic Math:
[link to math.about.com]

6÷2(1+2) = ?

Order of operations ...

1. ()
2. do problem left to right

soo...

6÷2(1+2) = ?

(1+2)= 3
6/2= 3
3 x 3 = 9

So...

9

Plug 6÷2(1+2)= into the site below:

[link to www.myalgebra.com]

Click 'Answer' and let us all know what you get, eh?

Its funny you say that, I have my rotorcraft license and working on my IFR, and commercial

I am part of the SCCA (sports car clud of america)

I am a biologist

So you fail LOL

Parentheses, the Multiply, the divide

2(anything) = multiplication

chill out man your wrong its okay

when I do weight and balance for helo we use parenteses too and I seem to still be alive so I trust myself over you anyday LOL