DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - General Discussion > Dodge Ram Forum Polls!


Notices

Dodge Ram Forum Polls! Get Your Vote On!


Latest Vendor News
AutoAnything
Addictive Desert Designs!
Bayou Goat Mounts

View Poll Results: 48÷2(9+3) = ???
288 128 47.76%
2 140 52.24%
Voters: 268. You may not vote on this poll

Reply
 
Thread Tools
  #41  
Old 06-25-2011, 11:41 PM
highlandchef's Avatar
highlandchef highlandchef is offline
Conventional Eccentric
 
Join Date: May 2011
Location: New York
Posts: 1,228
Gender: Male
Vehicle: 2009 Dodge Ram Crew Cab
Trim Level: SLT Big Horn
Color: Brilliant Black Crystal Pearl Coat
Rep Power: 4
Rep:220
highlandchef has a spectacular aura abouthighlandchef has a spectacular aura abouthighlandchef has a spectacular aura about
Default

Quote:
Originally Posted by LeKy411 View Post
The answer is 2

First you do the parenthesis.
Then you multiply out the the number next to the parenthesis because this implies multiplication.
Finally you divide.

God I hope I know this, I teach children for a living.
Sorry teach in this case as written you are incorrect but it's not your fault.
The problem is purposely written imprecisely to take advantage of a common mnemonic. Something that wouldn't fly with any mathematician.



You are using PEMDAS strictly as it is written:

Parenthesis -> exponents -> multiply -> divide -> add -> subtract

More correctly it should be written

Parenthesis -> exponents -> multiply/divide -> add/subtract

Multiplication/Division have equal value and are solved left to right, add/subtract is the same.

One way to realise this is many people learned BODMAS in school.

Same principle different english language. LOL

Brackets -> Orders -> Division/Multiplication -> Addition/Subtraction.

So depending on where you grew up you would get different answers if the mnemonic had to be followed strictly:

PEMDAS
48 / 2*(9+3) = 48 / 2*(12) = 48 / 24 = 2

BODMAS
48 / 2*(9+3) = 48 / 2*(12) = 24*12 = 288

In this case BODMAS gives us the correct answer (if used strictly as written) but not because it is superior. It works only because it's written in the same order as the division/multiplication is read in the problem.
__________________

Disclaimer: I'm getting old and my opinions will reflect that fact!
Reply With Quote
Sponsored links
  #42  
Old 06-25-2011, 11:49 PM
highlandchef's Avatar
highlandchef highlandchef is offline
Conventional Eccentric
 
Join Date: May 2011
Location: New York
Posts: 1,228
Gender: Male
Vehicle: 2009 Dodge Ram Crew Cab
Trim Level: SLT Big Horn
Color: Brilliant Black Crystal Pearl Coat
Rep Power: 4
Rep:220
highlandchef has a spectacular aura abouthighlandchef has a spectacular aura abouthighlandchef has a spectacular aura about
Default

Quote:
Originally Posted by Wildcat View Post
I got 2, the way it is written, and here is why. Everyone agrees we do the parentheses first, and get 12. Then, we work with the 2(12) because that is the way it is written, just like if it were written 48/2*12 you would do the fraction first working left to right, just like if it were written as 48÷2. Since there is no mathematical symbol separating the 2 and (12) you treat them as one figure, used to divide the 48. By using the parentheses they are implying that is one figure, 2(12) and not 2 separate numbers, 2*12.
When solving a problem you only solve inside the parentheses for that step. The multiplication symbol is implied and it makes no difference whether it is written or not for how you solve the problem.
__________________

Disclaimer: I'm getting old and my opinions will reflect that fact!
Reply With Quote
  #43  
Old 06-26-2011, 10:41 PM
Wayne084 Wayne084 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Mar 2011
Location: Nova Scotia
Age: 32
Posts: 108
Gender: Male
Vehicle: 2011 Ram 1500
Trim Level: Sport
Color: Bright White
Engine: 2009-???? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:53
Wayne084 will become famous soon enough
Default

Woah, that's cool I was soo wrong about that. Funny thing is I thought I was good at math, but that was such an obvious mistake when you look at it. Yah, it's definitely 288 (as you already knew)
Reply With Quote
  #44  
Old 07-19-2011, 08:10 AM
mclovin7794's Avatar
mclovin7794 mclovin7794 is offline
Dodge Ram Forum Newcomer
 
Join Date: Jun 2011
Location: Anchorage
Age: 25
Posts: 25
Gender: Male
Vehicle: 2002 Dodge Ram
Trim Level: SLT
Color: Grey
Engine: 2002-2007 287ci (4.7L) PowerTech V8 235hp 295lb/ft
Rep Power: 0
Rep:10
mclovin7794 is on a distinguished road
Default

Quote:
Originally Posted by 98sst View Post
They've never heard of your aunt pemdas. Lol Parentheses, exponents, multiplication, division, addition, subtraction.

they are multiplying the 2 by 12 then dividing 48 by 24. Ford forum?
Ford Forums? Are they smart enough to make one? jk lol funny though.

It's 288 btw!
__________________
Grab life by the horns.
Reply With Quote
  #45  
Old 07-19-2011, 04:46 PM
doz doz is offline
Dodge Ram Forum Senior Member!
 
Join Date: May 2010
Location: Las Vegas, NV
Age: 33
Posts: 511
Gender: Male
Vehicle: 2014 Dodge Ram Crew Cab 4x4
Trim Level: Sport
Color: White
Rep Power: 0
Rep:49
doz is on a distinguished road
Default

Still in shock that 50% of the people answered 2 here................
__________________
DS Trinity w/ HF Tune, ARH LT Headers, Magnaflow Cat-back, Vararam Intake, 6000k RS HID, BT Catch Can, XD Misfits w/ 35"x12.5"x18", 2.5" HBS level, 5% tint w/ 35% full windshield
Reply With Quote
  #46  
Old 07-24-2011, 10:59 AM
RedRam10's Avatar
RedRam10 RedRam10 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jul 2010
Location: North Carolina
Age: 56
Posts: 8,240
Gender: Male
Vehicle: 2010 Ram Quad Cab 4x4
Trim Level: Big Horn
Color: Inferno Red Pearl
Rep Power: 10
Rep:743
RedRam10 is a splendid one to beholdRedRam10 is a splendid one to beholdRedRam10 is a splendid one to beholdRedRam10 is a splendid one to beholdRedRam10 is a splendid one to beholdRedRam10 is a splendid one to beholdRedRam10 is a splendid one to behold
Default

So which came first the chicken or the egg?
__________________
New to RamForumZ? NEWBIE CHECKIN!
Reply With Quote
  #47  
Old 07-24-2011, 10:34 PM
wylie wylie is offline
Dodge Ram Forum Senior Member!
 
Join Date: Feb 2011
Location: Lone Oak, Texas
Age: 70
Posts: 220
Gender: Male
Vehicle: 2011 Dodge Laramie 1500 CC
Trim Level: Laramie
Color: Blue
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:55
wylie will become famous soon enough
Default shock

Quote:
Originally Posted by doz View Post
Still in shock that 50% of the people answered 2 here................
Because 2 is the correct answer.
Reply With Quote
  #48  
Old 08-30-2011, 01:15 PM
brguzz's Avatar
brguzz brguzz is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jul 2011
Location: Ontario
Age: 21
Posts: 99
Gender: Male
Vehicle: 2012 Ram 1500 Sport
Trim Level: Sport
Color: Bright White
Engine: 2009-???? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:10
brguzz is on a distinguished road
Default

Found this info online so both could be technically right.

Standard Order of Operations
If one strictly uses the standard order of operations to solve mathematical expressions, the answer to the problem would be 288, which is also the same solution provided by WolframAlpha[17] and Google.[18]
By convention, the order of precedence in a mathematical expression is as follows:
Terms inside of Brackets or Parentheses.
Exponents and Roots.
Multiplication and Division.
Addition and Subtraction.
If there are two or more operations with equal precedence (such as 10÷2÷5 or 7÷2*9), those operations should be done from left to right.
Therefore, the problem “48÷2(9+3) =” would be solved like this:
48 ÷ 2 * (9+3)=
48 ÷ 2 * (12)=
48 ÷ 2 * 12=
24 * 12=
288
PEMDAS
Solving for the answer 2 is sometimes a result of doing multiplication before division. Much of the confusion can be blamed on PEMDAS (sometimes known as, “Please Excuse My Dear Aunt Sally”) and other similar mnemonics used to teach order of operations in schools.
As an example, PEMDAS stands for:
Parentheses
Exponentiation
Multiplication
Division
Addition
Subtraction
Whereas BEDMAS stands for:
Brackets
Exponentiation
Division
Multiplication
Addition
Subtraction
The former can lead to the implication that addition always comes before subtraction, and that multiplication always comes before division. The latter can lead to the implication that addition always comes before subtraction, and that division always comes before multiplication.
__________________
2012 White Ram Sport
Reply With Quote
  #49  
Old 09-01-2011, 05:46 PM
Unbridled's Avatar
Unbridled Unbridled is offline
Dodge Ram Forum Senior Member!
 
Join Date: Nov 2008
Location: Montana
Age: 39
Posts: 222
Gender: Male
Vehicle: 2001 Dodge Ram 1500 4x4 w/318
Trim Level: Ext. cab Laramie SLT
Color: White w/ graphics
Rep Power: 0
Rep:19
Unbridled is on a distinguished road
Default

parenthesis first, always (in simple math)
Reply With Quote
  #50  
Old 09-02-2011, 10:20 AM
11HEM1's Avatar
11HEM1 11HEM1 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Oct 2010
Location: South Florida
Posts: 561
Gender: Male
Vehicle: 2010 Dodge Ram 1500 Crew 4X4
Trim Level: Big Horn
Color: Mineral Gray
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:31
11HEM1 is on a distinguished road
Default

48÷2(9+3) = ???

48÷2(12)

24(12)

24x12= 288

OK I did it manually and got 288

Then I did it with my calculator and got 2
__________________
Debadged -4" Mopar Lift - XD Cranks - 325/60/20 Nitto Grapplers
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 04:04 PM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum