How do you solve this?

[Twisted Metal]

You're joking right? There's no argument there, there are simple rules to follow.

Yet not even TI calculators can agree on the answer. It's really a problem of implied vs explicit multiplication and how you interpret each. Some calculators/texts place higher precedence on implied multiplication. So for example, a problem like 10/5x would be solved by multiplying 5 * x first. Problem is that other calculators/texts don't go by that rule. Who is right? Bottom line is that the equation is a mess and should be written in a more clear, concise manner.

 

[Twisted Metal]

You'd be surprised how many people forget parts in the order of operations.

It's not taught right to be honest. Teachers don't emphasize enough that multiplication is equal to division, and addition is equal to subtraction. Nowhere in the "PEMDAS" phrase is it implied that they're equal. A lot of people just read it from left to right and assume that it's in prioritized order. And it is, but you kinda gotta picture it this way:

PEMA
  DS

or maybe just group with parentheses:

PE(MD)(AS)

 

[Kantham]

Now try solving 48 / 2(9+3).

288

That's 1st grade high school stuff.

 

[KaL976]

Im fuckin terrible at math. Is this shit hard for anyone else?

Judy had a number of raisins. After eating one, she gave half the remainder to her sister. After eating another raisin, she gave a third of what was left to her brother. Judy now had only six raisins left. How many raisins did she start with?

You need to shoot everyone that answered this thread in the head.

 

[KaL976]

Seriously, how many rasins did you pack into her vagina... assuming it was a her.

 

[kiff]

and what kind of raisins... african or european?

 

[drakon]

eureka! that's it!
Bite Me you're a genius!

the reason black people score low in math tests isn't because they're bad at math.
it's because the examples used in traditional word problems are racist. they don't address the conditions that are relevant to black society.

classic word problems included scenarios like "train A leaves the West station heading due East at 3:05 traveling 74 KPH, while train B leaves the East station heading due West at 3:15 traveling 68 KPH..." when in reality, we know black people can't afford to ride the train, let alone make it to places on time.

we must scrap this irrelevant bullshit and rework the word problem to reflect an environment and culture that black people can identify with. there's no reason the black man can't be good with numbers. we've just been unfair to his sensibilities.

I hereby nominate this thread to be instantly archived in the "classics" due to sheer awesomeness present in this 'ere post


Seriously, Jacks, you made me weep and laugh at the same time... I salute you!

 

[drakon]

Now try solving 48 / 2(9+3).

One of the most controversial expressions on the internet. The cause of more arguments than airplanes on a conveyor belt.

I'm not sure how the others got 288, but I only 2. When I did algebra, I was told that you always calculate what's in the brackets first, and then work your way outside.

So:

1. (9+3) = 12
2. 2(12) = 24
3. 48 / 24 = 2


But what the frock do I know?

 

[Staward]

Hey guys, check that out:

F = square root of F(YOU + X) / UCK

F² = F(YOU + X) / UCK

F²UCK = F(YOU + X)

F²UCK = FYOU + FX

F²UCK - FYOU = FX F)

X = F UCK - YOU

I learned that in school. Seriously.

 

[Polychron]

Solve this:

Let ε < 0.


Have fun!

 

[Vaskadar]

and what kind of raisins... african or european?

What is the airspeed velocity of an unladen raisin?

 

[Darkdrium]

But what the frock do I know?

You can't know. This whole thing is badly written on purpose to troll people.

48/[2*(9+3)] = 2
but
(48/2)*(9+3) = 288

 

[Agent_5]

pi=3.15 in some state in the USA.

Do you have a source? I've only heard about Indiana trying to change pi to 3.2

 

[BITE_ME]

I'm not sure how the others got 288, but I only 2. When I did algebra, I was told that you always calculate what's in the brackets first, and then work your way outside.

So:

1. (9+3) = 12
2. 2(12) = 24
3. 48 / 24 = 2


But what the frock do I know?

We had the same math teachers too

 

[Staward]

The first digits of pi are on my signature

 

[toniglandyl]

Do you have a source? I've only heard about Indiana trying to change pi to 3.2

I must have remembered badly.

but here it seems that it is done : http://www.straightdope.com/columns...egislature-once-pass-a-law-saying-pi-equals-3

the Indiana legislature did not consider making pi equal to 3, but rather to 3.2, 4, or approximately 3.23, depending on which formula you used

 

[Vaskadar]

[m]http://youtu.be/EHFgeo1Py0A[/m]