8÷2(2+2)=

[Instigator]

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

what do I win?

Nothing
8÷2(2+2)
2+2=4
8÷2=4
Those are the two equations.
There is no driver, exponent or equation between the two separate equations, therefore you are left with 44.
Lol

 

[MissB]

Nothing
8÷2(2+2)
2+2=4
8÷2=4
Those are the two equations.
There is no driver, exponent or equation between the two separate equations, therefore you are left with 44.
Lol

just stop... LOL

 

[Instigator]

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.

Which is why the correct answer is 44. There is no enough I formation as it is an incomplete formula to continue any further that the two equations.
Lol

 

[BHC Vic]

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.

Math major here disagrees??

 

[530RL]

I just plugged that into an excel spreadsheet while sitting listening to people in S. Korea talk about Quartz Production. (It's pretty boring)

Excel would not accept 8/2(2+2).

It suggested +8/2*(2+2)

It put in the multiplication sign to clarify the formula and result in 16.

Interesting.

 

[BHC Vic]

College of Rock...noted.

Santiago community college rio Hondo and Palomar as well

 

[Instigator]

I just plugged that into an excel spreadsheet.

Excel would not accept 8/2(2+2).

It suggested +8/2*(2+2)



Interesting.

Because it is an incomplete formula.

 

[530RL]

Which is why the correct answer is 44. There is no enough I formation as it is an incomplete formula to continue any further that the two equations.
Lol

Technically following you logic it would be 4(4) as no function has eliminated the Parenthesis............

 

[Ziggy]

The way I calculate it, I think it will be able to take off

 

[Instigator]

just stop... LOL

Ok
How about this?
https://www.riverdavesplace.com/forums/threads/if.203792/

 

[MissB]

how about:
8÷2(2+2)
2x2 + 2x2 = 8
8÷ 2(8)
8÷ 16 =

.5

 

[Instigator]

Technically following you logic it would be 4(4) as no function has eliminated the Parenthesis............

Your are correct. Now what?
You have still typed an incomplete formula.
Lol

 

[Ziggy]

Your are correct. Now what?
You have still typed an incomplete formula.
Lol

Four fourths or four times four is the debate....or do nothing

 

[Instigator]

Four fourths or four times four is the debate....or do nothing

Correct!!!
Incomplete formula!!!!!

 

[Waffles]

Math major here disagrees??

You're a math major?

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[Kachina26]

We're doomed.

 

[The Prisoner]

I see 16

I see dead people.

 

[Carlson-jet]

Common core is about teaching kids to deal with stress.
They will need that skill later in life when they are no longer dealing with a public school system, until they have their own kids.

 

[BHC Vic]

You're a math major?

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No but our millwright instructor is an engineer w a math major

 

[Racey]

Math major here disagrees??

As written, following CORRECT order of operations, the answer is 16.

https://www.wyzant.com/resources/answers/382409/what_is_the_correct_answer_8_247_2_2_2

Paste the equation directly into google or bing as written, the answer is 16

 

[Waffles]

No but our millwright instructor is an engineer w a math major

10/4. So what order of operations does the prof suggest using and why?

 

[BajaMike]

16

 

[was thatguy]

The answer is “blue”...I used common core.

 

[BHC Vic]

10/4. So what order of operations does the prof suggest using and why?

He did it the same way I did. Now he’s googling shit because the construction master says 16 and he disagrees

 

[K-DOG]

I cheated my way through math in high school so the answer is whatever the kid next to me had down.

 

[was thatguy]

All on a Thursday.

 

[Waffles]

He did it the same way I did. Now he’s googling shit because the construction master says 16 and he disagrees

Lol

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[Waffles]

@BHC Vic tell the prof to help me out with this:

4.2 gallons of 11.5% sodium hypochlorite (S.G. = 1.09) is fed into a flow leaving an 80ft diameter reservoir every hour.
At midnight on Saturday, the pressure gauge 30" up the sidewall of this reservoir read 14psi.
24Hrs later, this same gauge read 5psi.
The flow rate entering this reservoir was a constant 3000gpm during this entire process.
If the effluent chlorine residual is stready at 0.75mg/l, what is the chlorine demand?

lol

 

[BHC Vic]

his response was he only makes 150k a year and that’s above his pay grade???

 

[Yellowboat]

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

In a training class today. Long story short, that eq is written very poorly. When I get out I can do a proof to show that both answers are correct

 

[BHC Vic]

I was really hoping he would answer it. I’m pretty positive i pissed him off but millwrights are strange

 

[Waffles]

I was really hoping he would answer it. I’m pretty positive i pissed him off but millwrights are strange

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[Instigator]

As written, following CORRECT order of operations, the answer is 16.

https://www.wyzant.com/resources/answers/382409/what_is_the_correct_answer_8_247_2_2_2

Paste the equation directly into google or bing as written, the answer is 16

Only because Google makes an assumption and added a symbol to the equation!!

 

[Spudsbud]

yup. 16

 

[BHC Vic]

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I ain’t mad. Apparently I make more than him and I’m headed to the river today. He’d be really mad if he knew that

 

[BHC Vic]

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I don’t know what he spent on college but that’s what I think is crazy. My wife is the same thing. She graduated from cal state Fullerton but I still make more w no education. This guy has a ton of schooling but if I work ot I’ll stay make more with zero schooling. Crazy

 

[Waffles]

I don’t know what he spent on college but that’s what I think is crazy. My wife is the same thing. She graduated from cal state Fullerton but I still make more w no education. This guy has a ton of schooling but if I work ot I’ll stay make more with zero schooling. Crazy

Same. My girl graduated with a bachelors in marketing from FIDM and I make double what she makes. Only reason I'm taking classes right now is to get out of the industry I'm in. Shooting for D2/T2 certs

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[mash on it]

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 plane and treadmill got sucked up into the duct of the intake of the jet pump.

And my smart phones' calculator shows 16.

How far is up?

Dan'l

 

[BHC Vic]

Same. My girl graduated with a bachelors in marketing from FIDM and I make double what she makes. Only reason I'm taking classes right now is to get out of the industry I'm in. Shooting for D2/T2 certs

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A bunch of girls from FIDM lived at the met in downtown la. Those rooms were 3400 a month plus college, and food. Some of those families have to be absolutely loaded


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[Old Texan]

All I know is:

 

[Waffles]

A bunch of girls from FIDM lived at the met in downtown la. Those rooms were 3400 a month plus college, and food. Some of those families have to be absolutely loaded


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If you only knew lol

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[spark2678]

16 all day every day

 

[BHC Vic]

If you only knew lol

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When we built the Marriott I was living there with my buddy. We had a ton of fun.

 

[jetur]

I got 16.

 

[ChumpChange]

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.

Been that way since the 90s when I was in school.

 

[Wombat]

Geez OT, this was the first thing l clicked on getting up now (it's morning here now) and now l need a coffee.
Using Aussie mathematics (helped with coffee) l got the answer of 16.

 

[TrollerDave]

Geez OT, this was the first thing l clicked on getting up now (it's morning here now) and now l need a coffee.
Using Aussie mathematics (helped with coffee) l got the answer of 16.

So, your math is like the water when flushed, backwards?

 

[calkid]

16

 

[Racey]

All I know is:

When you have Jimmy's money who needs math....

He has people for that

 

[BHC Vic]

So everyone talks shit on common core, but that’s the way everyone does math?