Math: right answer

[vito corleone]

ang kukulit nyo, the answer is 2

the expression is 48/2(9+3), which consists of just one term so you apply pedmas and then execute from left to right. . .now, since this is just one term, there's nothing to execute from left to right


some of the people here obviously mistake it for 48/2x(9+3), which consists of two (2) multiplicative terms (48/2 and (9+3)) where execution from left to right is applicable, but is not the case for the expression that the ts posted


go back to the expression, it is 48/2(9+3) and not 48/2x(9+3) or 48/2*(9+3)

the answer is 2

[niky]

How many of you would flunk High School Algebra, I wonder.

I read it as 2, because 2 is applied as a multiplicand to the parenthesis... like so:

48 / 2(9+3)

Which makes the entire righthand part of the equation part of the dividend.

However, if it were written like this:

48 / 2 * (9+3), then I would interpret it as being:

48/2 * (9+3).

There's the rub, though... since no multiplication sign is actually used, you have to assume that 2(9+3) is one expression entirely. Which some calculators do, as that's how it's done in Algebra and Physics.

-

Which would mean a whole ****load of Physics equations will have to be re-written in the textbooks to avoid confusion... :hysterical:

[vinj]

Ampch... i-ban nalang si Jansky. Nanggulo pa eh.

Balik nalang tayo sa "Which-is-better-Montero-Fortuner-Sta.Fe" threads.


















My answer was 2 though.

[sgt_taga]

correct answer is 2

(over analysis causes brain paralysis hehehehe)

[jansky]

hahaha.. i asked my wife and she said 2 also

i asked my friend and he said 2,

my other friend said 288

kapitbahay namin 288

get back to topic

sometimes LEFT To RIGHT is not a policy

[roninblade]

How many of you would flunk High School Algebra, I wonder.

I read it as 2, because 2 is applied as a multiplicand to the parenthesis... like so:

48 / 2(9+3)

Which makes the entire righthand part of the equation part of the dividend.

However, if it were written like this:

48 / 2 * (9+3), then I would interpret it as being:

48/2 * (9+3).

There's the rub, though... since no multiplication sign is actually used, you have to assume that 2(9+3) is one expression entirely. Which some calculators do, as that's how it's done in Algebra and Physics.

-

Which would mean a whole ****load of Physics equations will have to be re-written in the textbooks to avoid confusion... :hysterical:

so flunked din lahat ng engineers ng google calculator not to mention the engineers of the calculators showing 288? how about the engineers of all the programming languages? they all show 288.

even the guys in physics forums i visited can't agree on this one - split 50/50

implicit vs explicit notation is a bitch


this reminds me of the argument about a plane and a treadmill. if you place an airplane in a big enough treadmill, would it still take off if the treadmill always runs as fast as the airplane? but that obviously is easier to answer.

[roninblade]

sometimes LEFT To RIGHT is not a policy

made me LOL.

if it's not followed all the time then it's not really a policy. that's a politician's policy - changing according to the occassion ;)

[niky]

so flunked din lahat ng engineers ng google calculator not to mention the engineers of the calculators showing 288? how about the engineers of all the programming languages? they all show 288.

even the guys in physics forums i visited can't agree on this one - split 50/50

implicit vs explicit notation is a bitch


this reminds me of the argument about a plane and a treadmill. if you place an airplane in a big enough treadmill, would it still take off if the treadmill always runs as fast as the airplane? but that obviously is easier to answer.

Yun nga yun... by the style of the notation, it looks like it should be two, but if you write it out traditionally, it would be 288.

If the calculators can't agree, then someone has found an excellent glitch. Not as evil as the Y2K bug yet.

-

Plane? Treadmill? Don't start that one again!

[claRkEnt]

wow, 5 pages and counting...daming na-stress.

Time-out for some stress-reliever!

[donbuggy]

^:rofl:

hahaah.. yeah calculator also confused.

tried excel and it will give us 288 also



but get back to topic

if we going to substitute everything into variables (algebraic equation)
then assume


Let V=?, W=48, X=2, Y=9, Z=3

Solve for V

V= W÷X(Y+Z)

V= W÷(XY+XZ)

V= 48÷24

V= 2

Or...

Let V=?, W=48, X=2, Y=9, Z=3

Solve for V

V = W÷X(Y+Z)

V = (W÷X)Y + (W÷X)Z

V = (48÷2)9 + (48÷2)3

V = 216 + 72

V = 288

[Starex_Gold]

Wala pa ba sagot from Middle Earth?

[Haruto]

How many of you would flunk High School Algebra, I wonder.

I read it as 2, because 2 is applied as a multiplicand to the parenthesis... like so:

48 / 2(9+3)

Which makes the entire righthand part of the equation part of the dividend.

However, if it were written like this:

48 / 2 * (9+3), then I would interpret it as being:

48/2 * (9+3).

There's the rub, though... since no multiplication sign is actually used, you have to assume that 2(9+3) is one expression entirely. Which some calculators do, as that's how it's done in Algebra and Physics.

-

Which would mean a whole ****load of Physics equations will have to be re-written in the textbooks to avoid confusion... :hysterical:

this is the correct answer and correct explanation!

[roninblade]

Wala pa ba sagot from Middle Earth?

be careful what you wish for hahahaha!

[robot.sonic]

this reminds me of the argument about a plane and a treadmill. if you place an airplane in a big enough treadmill, would it still take off if the treadmill always runs as fast as the airplane? but that obviously is easier to answer.

Sorry OT.

[12vdc]

Wala pa ba sagot from Middle Earth?

Antay ko yung economist version by sir uls.

Even calculator makers are confused

Bawal yan super hightech calculator sa board exams.

[Starex_Gold]

be careful what you wish for hahahaha!

Malay natin yun ang tamang sagot. Aha ha ha!

[niky]

this is the correct answer and correct explanation!

Actually... it's probably wrong. Had to check... implied multiplication isn't a hard and fast rule... so it should be the same written out.

The problem is, we see it and immediately assign it as thus:

48÷2(9+3) ->

48
2(9+3)

where we should also consider:

48÷2(9+3) is the same as 48 ÷ 2 x (9+3).

Problems, problems.

Teka teka... antahimik ng engineers dito... Paging Ghosthunter...

[ward_23]

Ang galing ah.. :groupwave:

[MaNgo_Crepe]

Why si sir uls tahimik den yata.....paging sir uls...hehe busy yata sa sponsorship..

[locoroco777]

ano ba itong thread na ito hindi ako maka relate....