8÷2(2+2)=

[Old Texan]

What is the answer to the equation?

Not as simple as it appears

https://www.foxnews.com/tech/viral-math-problem-baffles-many-internet

 

[WYRD]

1

 

[Waffles]

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[farmo83]

What happened to Please Excuse My Dear Aunt Sally ?

No wonder kids are so confused these days.

 

[Your ad here]

One

 

[Instigator]

The question or formula isn't complete.
There is something missing between the 2 equations.
1st equation equals 4.
2 nd equation equals 4.
Therefore the answer is 44.
The treadmill isn't separating the two equations.

 

[Sleek-Jet]

Math is hard... Let's go shopping!

 

[WhatExit?]

It’s 16

You go inside the parentheses and calculate that first: (2+2)=4

Then 8/2=4

Then 4*4=16

 

[rrrr]

It's 1 or 16. The arrangement of solving shown is ambiguous.

 

[Ricks raft]

I'm no math wiz but was taught that anything in quotes was multiplied by the first equation.
8 divided by 2=4. 2+2=4. 4x4=16...

 

[Waffles]

What happened to Please Excuse My Dear Aunt Sally ?

No wonder kids are so confused these days.

Aunt Sally died.


Now its:

Please excuse my dear aunt HOW DARE YOU ASSUME MY GENDER YOU RACIST BIGOT.


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[stokerwhore]

common core argument for this bullshit? "it's right if we agree that it is" LMAO. only as math applies to like painting pictures or some such like yuh know?

 

[HydroSkreamin]

Well, the way it was beaten into me over I don’t know how many years of calculus was inside quotations first, then either side of the division sign.

It can also read 8/2(2+2), which implies 8/(2 x (2+2)), which is 1.

When we were in high school doing theorems a gentleman approached us while we were discussing homework and proceeded to prove that 1=0. This is exactly what happens when we assume...

 

[Instigator]

It’s 16

You go inside the parentheses and calculate that first: (2+2)=4

Then 8/2=4

Then 4*4=16

What formula is between the two equations?
+
-
÷
×
*
/
=
?

 

[rrrr]

I'm no math wiz but was taught that anything in quotes was multiplied by the first equation.
8 divided by 2=4. 2+2=4. 4x4=16...

8÷2(2+2)= doesn't follow conventional arrangement and signage.

Simplest proper form would be 8÷2 × (2+2) = 16
This is the PEMDAS method: the order of operations is Parentheses, Exponents, Multiplication, Division, Addition, Subtraction, typically from left to right
Or
(2+2) × 2 ÷ 8 = 1
Solved Via "BOMDAS" Rule :
(B racket)
O( f )
M x ultipication
D÷ ivision
A+ dditional
S-ubtraction

 

[Racey]

Yep it's an ambiguous equation, but following PEMDAS it's 16 M/D are left to right and it's Multiplication OR Division as you come across them from left to right.

8÷2(2+2)= 8÷2(4) = 4(4) = 16

Equations should not be written in ambiguous manners, If they wanted to write as 8 divided by (all this other stuff) it would look like this:

___8__
2 (2+2)

In which case you get 8/8

 

[Waffles]

8÷2(2+2)= doesn't follow conventional arrangement and signage.

Simplest proper form would be 8÷2 × (2+2) = 16
Or
(2+2) × 2 ÷ 8 = 1

I was always taught that any number outside a parentheses was multiplied. Simplest form is the way it's written

5(2)
(5)2
(5)(2)
5*2

=10

No need to rewrite it as 5x(2) to establish that you're multiplying

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[Rayson1971]

I see 16

 

[Bigbore500r]

Aunt Sally died.


Now its:

Please excuse my dear aunt HOW DARE YOU ASSUME MY GENDER YOU RACIST BIGOT.


Sent from my FRD-L14 using Tapatalk

Just spit my coffee out

 

[500bbc]

Yep it's an ambiguous equation, but following PEMDAS it's 16 M/D are left to right and it's Multiplication OR Division as you come across them from left to right.

8÷2(2+2)= 8÷2(4) = 4(4) = 16

Equations should not be written in ambiguous manners, If they wanted to write as 8 divided by (all this other stuff) it would look like this:

___8__
2 (2+2)

In which case you get 8/8

This

 

[C-2]

Same here as Waffles. I recently went thru algebra at the city college level and using the order of operations, was taught no "x" sign necessary; the bracket next to the number is assumed multiplication.

 

[rrrr]

Good thing it wasn't something difficult like the Einstein Tensor, which postulated the similarity between a stationary gravitational body and a mass being accelerated.

There is a tensor closely related to the Ricci scaler which can be put on the left-hand side without contradiction. This gives the Einstein tensor defined as follows:

where R = Raa is the Ricci scalar or scalar curvature.

This form of Gab is symmetrical and of rank-2 and obviously describes the spacetime curvature. So it just remains to show that the total derivative is zero

To do this, we start with the The Bianchi identity

Multiplying through by gγσgαμgβν (the metrics derivatives are zero, so they act as constants and can be taken inside the derivatives), it yields to:

By using the Ricci tensor definition Rμν=gμβgνσRβσ (step 3) and by renaming the indices (step 4), we get

By factorising the derivative, we finally obtain

which is exactly what we wanted to demonstrate: the divergence of Einstein tensor is null, and we have found the right candidate for the left hand side of our curvature/mass-energy equation.

Ready for your coffee now?

 

[rrrr]

I was always taught that any number outside a parentheses was multiplied. Simplest form is the way it's written

5(2)
(5)2
(5)(2)
5*2

=10

No need to rewrite it as 5x(2) to establish that you're multiplying

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That's true, but I didn't want to further confuse some of the inmates.

 

[Waffles]

That's true, but I didn't want to further confuse some of the inmates.

Yea but 8÷2(2+2) and (2+2)2 ÷ 8 are two completely different equations under the pemdas rule.

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[Waffles]

Good thing it wasn't something difficult like the Einstein Tensor, which postulated the similarity between a stationary gravitational body and a mass being accelerated.

There is a tensor closely related to the Ricci scaler which can be put on the left-hand side without contradiction. This gives the Einstein tensor defined as follows:

where R = Raa is the Ricci scalar or scalar curvature.

This form of Gab is symmetrical and of rank-2 and obviously describes the spacetime curvature. So it just remains to show that the total derivative is zero

To do this, we start with the The Bianchi identity

Multiplying through by gγσgαμgβν (the metrics derivatives are zero, so they act as constants and can be taken inside the derivatives), it yields to:

By using the Ricci tensor definition Rμν=gμβgνσRβσ (step 3) and by renaming the indices (step 4), we get

By factorising the derivative, we finally obtain

which is exactly what we wanted to demonstrate: the divergence of Einstein tensor is null, and we have found the right candidate for the left hand side of our curvature/mass-energy equation.

Ready for your coffee now?

You need to get the fuck right outtta here with this one lmao.
Im over here trying to figure out chlorination demand and you hit me with this geometric shape shit

Find the slope of a line passing through two points if triangle³=hexagon∛(potatoes+jetboats)

 

[2Driver]

Best way to ensure a passing grade on that question.

8÷2(2+2)= Trumps a racist.

 

[BHC Vic]

I’m a college professor... the answer is 1

 

[Racey]

Yea but 8÷2(2+2) and (2+2)2 ÷ 8 are two completely different equations under the pemdas rule.

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Those are two different equations under any rule

Eight Divided by vs. Divided By Eight.

 

[stephenkatsea]

1 and 16

 

[Dirtbag]

You dummies who say pemdas rule and then come up with anything other than 1 are not following directions! P = parenthesis which means its First. anything touching the parenthesis is next. not left to right

 

[QC22]

8÷2(2+2)= Trumps a racist.

Well, Two Driver, we all appreciate your hard work on this. We do want to point out that some believe there should be an apostrophe between the p and s, such as Trump's. This would indicate Trump IS a racist of which all of us in the Teacher's lounge agree. We also applaud your awareness of current events, and we want to enhance your self esteem, so we elected to give you an "A+". Very good work!

 

[Sleek-Jet]

That is written like someone would write an equation to be plugged into a spreadsheet cell... But it still isn't correct.

(8÷2)(2+2) gives a different answer than 8÷(2(2+2)).

All I know is the airplane will take off from the treadmill.

 

[SummitKarl]

I am going with 1

8/ (2) 2+2
eight divided by (2) 2+2's

 

[SoCalDave]

 

[Racey]

You dummies who say pemdas rule and then come up with anything other than 1 are not following directions! P = parenthesis which means its First. anything touching the parenthesis is next. not left to right

Incorrect.

Parenthesis
Exponent
Multiple, or Divide (Left to Right)
Add or subtract (Left to Right)

Left to right takes precedent to keep equations from being ambiguous like this one, if you need something to happen out of that order that is why parenthesis exist.

Go to the 8 minute mark here:

Edit: This could be the next airplane on the treadmill. And just as the airplane will take off, the way Old Tex formatted this equation, if you follow proper rules, the answer is 16.

 

[Rayson1971]

If it was 8÷ 2(2+2) then it would be 1. The space in between the division sign and the 2 changes the equation.

 

[Racey]

If it was 8÷ 2(2+2) then it would be 1. The space in between the division sign and the 2 changes the equation.

Lol, no it doesn't. Spaces have zero bearing on an equation

 

[rivergames]

Hahaha I was hashing this out with my mom yesterday. She had 1 and I had 16. I told her I'm never wrong

 

[Racey]

Hahaha I was hashing this out with my mom yesterday. She had 1 and I had 16. I told her I'm never wrong

Bottom line, If you are getting anything other than 16 you are not solving the equation the way it is written. If your answer is 1 you are solving a completely different equation than the one presented.

 

[Instigator]

This could be the next airplane on the treadmill. And just as the airplane will take off, the way Old Tex formatted this equation, if you follow proper rules.

See post 6

The question or formula isn't complete.
There is something missing between the 2 equations.
1st equation equals 4.
2 nd equation equals 4.
Therefore the answer is 44.
The treadmill isn't separating the two equations.

 

[Racey]

Where the hell is @Yellowboat is he working for the man already? Get in here Calculus wizard.

 

[Instigator]

Bottom line, If you are getting anything other than 16 you are not solving the equation the way it is written. If your answer is 1 you are solving a completely different equation than the one presented.

What is the exponent between the 1st and 2nd formula?
I don't see one. Are you assuming one?
Or is it the plane or the treadmill that is covering it up?
Lol

 

[Instigator]

Where the hell is @Yellowboat is he working for the man already? Get in here Calculus wizard.

Lol
I only see two separate formulas. Therefore the answer is 44.
Don't overthink it.
See post 14.
Lol

 

[Racey]

What is the exponent between the 1st and 2nd formula?
I don't see one. Are you assuming one?
Or is it the plane or the treadmill that is covering it up?
Lol

The exponent is ^1

There are no spaces in the formula on my screen.

 

[Instigator]

The exponent is ^1

There are no spaces in the formula.

Exactly. Therefore there is no formula or exponent.
Maxwell(Smart Ass)

 

[Instigator]

There are no spaces in the formula on my screen.

View attachment 781844

So is it the plane or the treadmill hiding the formula?

 

[530RL]

This is a fairly common question in AP Algebra when testing under Arizona curriculum where the purpose is for the student to recognize, identify and explain why there are two possible answers.

The point of the question isn't to come up with 16 or 1, but to point out that by expressing things in ambiguous ways, one may get undesired outcomes.

 

[500bbc]

I’m a college professor... the answer is 1

College of Rock...noted.

 

[MissB]

Yep it's an ambiguous equation, but following PEMDAS it's 16 M/D are left to right and it's Multiplication OR Division as you come across them from left to right.

8÷2(2+2)= 8÷2(4) = 4(4) = 16

Equations should not be written in ambiguous manners, If they wanted to write as 8 divided by (all this other stuff) it would look like this:

___8__
2 (2+2)

In which case you get 8/8

you have to do all the parenthesis first:
8÷2(2+2)
8÷2(4)
8÷8
=1

what do I win?

 

[4Waters]

16