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View Full Version : 48÷2(9+3) = ?????


tallywacker
04-07-2011, 11:07 PM
48÷2(9+3) = ?????

Rangerscott
04-07-2011, 11:09 PM
two

Captain Morgan
04-07-2011, 11:12 PM
48÷2(9+3) = ?????

two

what he said. why so many question marks for such an easy math problem?

tallywacker
04-07-2011, 11:15 PM
what he said. why so many question marks for such an easy math problem?

It's 288

48
___ (9+3)= 288
2

Rangerscott
04-07-2011, 11:17 PM
You do the () calculation first, then what's its next to, then what ever is left over.


48 / 2(9+3)=

48 / 2(12)=

48 / 24=



10 x (8 / 2) =

10 x (4) =

10 x 4 = <---You dont really need to show this step but I had anal teachers

40

tallywacker
04-07-2011, 11:20 PM
48/2(9+3)
24(12)
288

left to right

2(12) is the same as 2 * 12 and multiplication and division are done at the same time so it goes left to right

48/2*12
24*12
288
Order of operations

tallywacker
04-07-2011, 11:25 PM
http://i.imgur.com/JH84C.gif

tallywacker
04-07-2011, 11:31 PM
http://img.photobucket.com/albums/v107/miroc/194227_837059570471_172003909_43320590_4914018_o.j pg

http://i51.tinypic.com/iekto2.jpg

BTW this question is on nearly every forum on the internet today. Some with over 100 page threads. Do a search

101lifts2
04-07-2011, 11:34 PM
Technically, you wrote an equation in bad form.

tallywacker
04-07-2011, 11:40 PM
Technically, you wrote an equation in bad form.

Well of course, there should be more brackets to make sense of the equation

anthonyk
04-08-2011, 12:05 AM
288

Let's talk about airplanes and treadmills again. That was fun. redflip

Trip
04-08-2011, 07:37 AM
288, because it's written like a 3rd grade order of operations problem. No one uses that division sign besides 3rd graders.

EpyonXero
04-08-2011, 08:01 AM
288, because it's written like a 3rd grade order of operations problem. No one uses that division sign besides 3rd graders.

288. This is the first thing they teach you in arithmetic. I see why the Chinese own us. . . .

defector
04-08-2011, 08:07 AM
I see why the Chinese own us. . . .
Because of lead paint in the Walmart toys?

derf
04-08-2011, 08:08 AM
http://www.google.com/search?rlz=1C1CHFX_enUS386US387&sourceid=chrome&ie=UTF-8&q=48%C3%B72(9%2B3)

Trip
04-08-2011, 08:56 AM
Wow this stupid equation is sweeping the forums from your google search. Is this the new stupid detector or something?

ontwo
04-08-2011, 09:59 AM
Multiplication comes before division in order of operations.
2

Trip
04-08-2011, 10:07 AM
Multiplication comes before division in order of operations.
2

Not at this level. You follow left to right for (multiplication & division) and (addition & subtraction). If the equation was written properly in higher level math, the order would be more clear.

Archren
04-08-2011, 10:18 AM
Not at this level. You follow left to right for (multiplication & division) and (addition & subtraction). If the equation was written properly in higher level math, the order would be more clear.

This is what is screwing me up. The last time I took a math class it was calculus... :lol:

(I hasten to add that I wasn't any good at it... which is why I am no longer a biology major, and rather a photography major.)

Trip
04-08-2011, 10:21 AM
for it to be two should look like

48
-------
2(9+3)

for 288

48
-- (9+3) (which it essientially written as with the stupid division sign that confuses everyone)
2

Archren
04-08-2011, 11:06 AM
Now THAT would have made more sense, certainly.

derf
04-08-2011, 12:20 PM
How about this one:

If the equation -x^2 + 2(k+2)x - 9k = 0 has two imaginary roots, what are the values of k ?

-x^2 + 2(k+2)x - 9k = 0
D = 4(k+2)² - 36k = 4k² -20k +16
Then D < 0
f(k) = 4k² -20k + 16
D' = 20² - 4*4*16 = 144
k = (20 +/- 12) / 8
k = 4 or k = 1
f(k) = 4(k-4)(k-1)
f(k) < 0 for 1 < k < 4
Solution = ] 1 ; 4 [


Damn plus wun guy

Particle Man
04-08-2011, 07:45 PM
Hahaha :zowned: by plus UNO

Avatard
04-08-2011, 07:52 PM
I cut and pasted the original equation JUST AS WRITTEN into google:

http://www.google.com/search?sclient=psy&hl=en&site=&source=hp&q=48%C3%B72%289%2B3%29&btnG=Google+Search

Everyone knows that Google is the prime oracle of wisdom.

All your maths belongs to us.

:fu2:

Trip
04-08-2011, 08:43 PM
The source of all knowledge, my trusty TI-89 says 288 as well.

http://farm6.static.flickr.com/5224/5602006088_b6f59c300c_z.jpg

Captain Morgan
04-09-2011, 03:05 AM
I guess I'm an idiot. I was always taught that you do the math inside () first, then multiplication, then division. So fuck your 288. :lol:

tallywacker
04-09-2011, 03:17 AM
I guess I'm an idiot. I was always taught that you do the math inside () first, then multiplication, then division. So fuck your 288. :lol:

The funny thing is, that there are 100 page threads on other forums debating the shit out of this question.

Amorok
04-09-2011, 07:39 AM
Fuck you all. I passed my college algebra with a B and still can't do imaginary numbers and shit. No more algebra on the weekend.

fatbuckRTO
04-09-2011, 02:24 PM
...

EpyonXero
04-09-2011, 09:06 PM
...

Yes and yes.

Cutty72
04-09-2011, 11:21 PM
No and yes, unless it is trying to lift the record player.

No because the rotors would hit the rails on the first thing.
Yes on 2 because even with rotation, there would still be down draft air from the rotors, creating lift.

Avatard
04-09-2011, 11:28 PM
Depends. In the last one if the turntable matches rotor speed in opposing direction, the rotor remains essentially motionless against surrounding air.

No lift.

fnfalman
04-09-2011, 11:33 PM
The calculator operates on GIGO.

Trip
04-09-2011, 11:37 PM
Depends. In the last one if the turntable matches rotor speed in opposing direction, the rotor remains essentially motionless against surrounding air.

No lift.

It would throw the heli off before it got to that speed and then the heli would crash and the blades would hit the ground and again, no takeoff. LOL

101lifts2
04-10-2011, 02:22 AM
Not at this level. You follow left to right for (multiplication & division) and (addition & subtraction). If the equation was written properly in higher level math, the order would be more clear.

Yes it's 48 halves times the sum of 9 and 3...288. It was just written a tad confusing.

fatbuckRTO
04-10-2011, 06:02 PM
lol, can't believe there were serious(?) answers to those pics :lol

Avatard
04-10-2011, 06:47 PM
I hope you know I'm not (entirely) serious. I was there for this shit.