Math: right answer

[ydreph962]

wala ako mahanap sa net na may ganyang rule sa math, na yung 2 cannot be seperate from (9+3) because it is considered as one entity. stick to the rule of PEMDAS hindi ka malilito.

di ako nalilito..kahit iapply mo ang pemdas..
x = 48/2(9+3)
x = 48/2(12) (multiply then divide)
x = 48/24
x = 2..

hindi yata tama na 48 / 2(12) ay gawin mong from left to right..
dapat multiply muna 2x12 tapos idivide sa 48..

i'll stick to my answer, 2..

yung mga taga mapua jan paki sagot naman para matapos na..
o yung mga nagrereview sa board exams ng engineering..

[digitalron]

di ako nalilito..kahit iapply mo ang pemdas..
x = 48/2(9+3)
x = 48/2(12) (multiply then divide)
x = 48/24
x = 2..

hindi yata tama na 48 / 2(12) ay gawin mong from left to right..
dapat multiply muna 2x12 tapos idivide sa 48..

In PEMDAS (or BODMAS or PIMDAS or BEDMAS, they're all the same), Multiplication has the same priority (or precedence) with Division. Whichever operation (of multiplication and division) appears first from the left must be performed before those on the right.

I hope this clears how everyone should understand the PEMDAS/BODMAS/PIMDAS/BEDMAS rule.

[dtruth]

288 at wala nang iba pa.

[rene_tagle]

di ako nalilito..kahit iapply mo ang pemdas..
x = 48/2(9+3)
x = 48/2(12) (multiply then divide)
x = 48/24
x = 2..

hindi yata tama na 48 / 2(12) ay gawin mong from left to right..
dapat multiply muna 2x12 tapos idivide sa 48..

i'll stick to my answer, 2..

yung mga taga mapua jan paki sagot naman para matapos na..
o yung mga nagrereview sa board exams ng engineering..

sir san nyo ba nakuha yung rule na multiply muna bago divide, baka pwede malaman kung sino author ng rule na yan?:doh::doh:

[kinyo]

got 13 yr old kid evaluate the expression

he stopped his solution writing 24(12) saying "wala kasing x eh"

i guess he meant this


[SIZE="5"]syntax error![/SIZE]

[rene_tagle]

got 13 yr old kid evaluate the expression

he stopped his solution writing 24(12) saying "wala kasing x eh"

i guess he meant this


[SIZE="5"]syntax error![/SIZE]

x=(), pareho lang yan, malamang outdated yang calc mo.

kahit saan forum ako pumasok halos lahat 288 ang sagot, ilan lang ang 2, dito lang sa tsikot marami nagsabing 2.

[kinyo]

malamang outdated yang calc mo.

hehe .. oo nga outdated na casio ko

pero bago pa ang Sharp ko ...


alam ng mga Sharp engineers ang PEMDAS at alam din nila ibig sabihin ng coefficient

dito lang sa tsikot marami nagsabing 2.

kasi nga nakakaintindi sila ng higher math, hindi lang PEMDAS

[rene_tagle]

Even calculator makers are confused

pansinin nyo yung model number ng calc, magkaiba, yung old model 2 ang sagot, yung new model 288, ibig sabihin nito nakita sa old model yung pagkakamali kaya binago sa new model, kaya 288 ang tamang sagot.

hehe .. oo nga outdated na casio ko

pero bago pa ang Sharp ko ...


alam ng mga Sharp engineers ang PEMDAS at alam din nila ibig sabihin ng coefficient

sir subukan nyo ulitin sa higher model(new model) ng sharp yan sigurado ako 288 na sagot nyan.

[kinyo]

one of the latest model ng Sharp ang EL-W506 ... check their website ... mas hamak namang luma yung dalawang TI calculators kesa W506

palagay ko nga sasabihin pa rin syntax error yung expression nung mga current standard scientific models

ang punto ko lang naman ...

48÷2(9+3) is not a proper expression when you are teaching PEMDAS ("syntax error", "wala kasing x eh") ... it entails knowledge of higher math dealing with variables and coefficients to properly evaluate it

[rene_tagle]

one of the latest model ng Sharp ang EL-W506 ... check their website ... mas hamak namang luma yung dalawang TI calculators kesa W506

palagay ko nga sasabihin pa rin syntax error yung expression nung mga current standard scientific models

ang punto ko lang naman ...

48÷2(9+3) is not a proper expression when you are teaching PEMDAS ("syntax error", "wala kasing x eh") ... it entails knowledge of higher math dealing with variables and coefficients to properly evaluate it

ganun ba? bakit nakapag-derive ng answer na 2 yung latest sharp w506 na hindi nag syntax error , parang wala akong nakitang x dun sa equation pero naperform parin ng calc yung operation? dapat syntax error ang sagot at hindi 2.

[abril]

"Distributive property of multiplication. Early Algebra.

The distributive property of multiplication CLEARLY states that the 2(9+3) is an entire term and CANNOT be broken up. 2(9+3) follows the distributive property which can be rewritten as (2*9+2*3). Let me repeat the 2 outside of the parenthesis follows the distributive property of multiplication and must be factored and simplified before performing any other operations on it.

So this can be rewritten as:
48 / (2*9 + 2*3)

Which leaves us with

48 / 24 = 2

Answer = 2."

got this from the net, it seems that a lot of people are also arguing what is the correct answer.

basic rule of algebra , distributive property

kaya "2" ang answer

[kinyo]

bakit nakapag-derive ng answer na 2 yung latest sharp w506 na hindi nag syntax error , parang wala akong nakitang x dun sa equation pero naperform parin ng calc yung operation? dapat syntax error ang sagot at hindi 2.

kasi nga alam na ng sharp W506 ang gumamit ng coefficient at hindi lamang PEMDAS ang alam niyang gamitin ... (lols parang nasabi ko na yata ito)

nasobrahan nga yata ang features ng calculator na ito ... ipinagbawal sa EE Board Exam

[roninblade]

i accept 2 for the algebraic solution but not for the plain PEMDAS misinterpretation/explanation from most of the users here.

[MXFX]

i see this as a plain order of operations question that can/should be written better. once 9 and 3 are added, parenthesis is just multiplication, left to right, etc...

algebra and distributive property very unnecessary.

288

[CVT]

kasi nga alam na ng sharp W506 ang gumamit ng coefficient at hindi lamang PEMDAS ang alam niyang gamitin ... (lols parang nasabi ko na yata ito)

nasobrahan nga yata ang features ng calculator na ito ... ipinagbawal sa EE Board Exam

Sabi ko naman kasi sa inyo,- pagalingan lang iyan ng calculator!... :hysterical:

12.8K:toma:

[mda_]

mali yung 288. 2 ang sagot.

__48 __
2(9+3)

yan dapat kasi yung basis. hindi distributable ang division sa addition/subtraction/multiplication. ang multiplication lang ang distributable sa addition/subtraction. tapos.

[roninblade]

mali yung 288. 2 ang sagot.

__48 __
2(9+3)

yan dapat kasi yung basis. hindi distributable ang division sa addition/subtraction/multiplication. ang multiplication lang ang distributable sa addition/subtraction. tapos.

ah but the equation was presented in a straight line, making the divisor ambiguous. kaya you have different results in different calculators. kaya excel, google, different programming languages, etc give 288.

it's a crappy equation. tapos. ;)

[mda_]

ah but the equation was presented in a straight line, making the divisor ambiguous. kaya you have different results in different calculators. kaya excel, google, different programming languages, etc give 288.

it's a crappy equation. tapos. ;)

you will get 288 if you interpret the equation the way you interpret it if you said it in a sentence

"forty-eight divided by two times open parenthesis nine plus three closed parenthesis". naturally, gagawin mo muna yung 48 divided by 2 kapag ganito pagbasa mo. if this is how you interpret it, the proper mathematical equation should read:

48/2 * (9+3)



pero hindi naman parang sentence dapat ang pag-interpret ng equation. may logic behind pemdas (dahil sa distributive property of multiplication over addition and subtraction). hence, two (2) ang tamang sagot.


elementary.

[roninblade]

ok if it's so elementary why do half the calculators and the sources i mentioned earlier give 288? are all the engineers who made those devices and softwares idiots then?

[MXFX]

ah but the equation was presented in a straight line, making the divisor ambiguous. kaya you have different results in different calculators. kaya excel, google, different programming languages, etc give 288.

it's a crappy equation. tapos. ;)

+1. i think there is no discussion if this is handwritten.

also, this is not an equation but just an expression. next, why mention pemdas and then NOT apply P first?

arithmetic.