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48÷2(9+3) = ?
Posted on 04/12/2011 1:32:09 PM PDT by grundle
Texas Instruments TI-85 says:
48÷2(9+3) = 2
But Texas Instruments TI-86 says:
48÷2(9+3) = 288
TOPICS: Miscellaneous
KEYWORDS: algebra; math; mdas; pemdas; texasinstruments
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To: grundle
21
posted on
04/12/2011 1:39:23 PM PDT
by
petercooper
(Purge the RINO's.)
To: Be Free
LOL...I guess I learned it a little different than you...
Parentheses, Powers (i.e. exponents), Multiplication, Division, Addition, Subtraction
22
posted on
04/12/2011 1:39:29 PM PDT
by
Joe 6-pack
(Que me amat, amet et canem meum)
To: buccaneer81
23
posted on
04/12/2011 1:39:39 PM PDT
by
shoedog
To: grundle
24
posted on
04/12/2011 1:40:04 PM PDT
by
NeoCaveman
(Silver, just buy the dips and thank me later.)
To: grundle
Ambiguous. The precedence of division and the multiplication of the parenthsized (9+3) is the same, therefore both answers are valid.
The preferred but non-binding left-to-right reading gives 288.
25
posted on
04/12/2011 1:40:20 PM PDT
by
MortMan
(What disease did cured ham used to have?)
To: grundle
2
48/2(9+3)=x
48/2*12=x
48/24=x
2=x
damn that math teacher that said “SHOW ALL YOUR WORK”
26
posted on
04/12/2011 1:42:34 PM PDT
by
gwilhelm56
(islam ... church of the Perpetually Offended!)
To: Arm_Bears
Japanese crap.I assume you drive a UAW-mobile?
To: grundle
What did you do Ray? What did you do??!!??
28
posted on
04/12/2011 1:43:16 PM PDT
by
Brett66
(Where government advances, and it advances relentlessly , freedom is imperiled -Janice Rogers Brown)
To: gwilhelm56
If the equation was
(48/2)(9+3)=x
24*12=x
288=x
29
posted on
04/12/2011 1:44:08 PM PDT
by
gwilhelm56
(islam ... church of the Perpetually Offended!)
To: BoringGuy
You added a perenthesis around the 2*(9+3) element that disambiguates the equation. Using typical left-to-right processing, the answer is 288.
30
posted on
04/12/2011 1:44:40 PM PDT
by
MortMan
(What disease did cured ham used to have?)
To: shoedog
I like the explanation in post 25.
To: MortMan
“Ambiguous. The precedence of division and the multiplication of the parenthsized (9+3) is the same, therefore both answers are valid.”
Nosir. Joe 6 has it correctly, but I doubt public education teaches students to think before using a calculator these days.
32
posted on
04/12/2011 1:45:18 PM PDT
by
treetopsandroofs
(Had FDR been GOP, there would have been no World Wars, just "The Great War" and "Roosevelt's Wars".)
To: grundle
33
posted on
04/12/2011 1:46:11 PM PDT
by
Lazamataz
(The Democrat Party is Communist. The Republican Party is Socialist. The Tea Party is Capitalist.)
To: gwilhelm56
What caused you to multiply before dividing? Multiplication and division (technically) have the same precedence, to my memory.
34
posted on
04/12/2011 1:46:22 PM PDT
by
MortMan
(What disease did cured ham used to have?)
To: gwilhelm56
the lack of a stated arithmetic operator between the 2 and the (9+3) associates them. That is the way you can build in an implied * to the equation
answer is 2
To: grundle
36
posted on
04/12/2011 1:46:57 PM PDT
by
Lazamataz
(The Democrat Party is Communist. The Republican Party is Socialist. The Tea Party is Capitalist.)
To: NRPM
I don’t know what is correct by the rules but in computer science it is parenthesis first followed by multiply or divide followed by add or subtract with whichever has precedence calculating left to right. In other words.
(48/2) * (9+3) = 288
37
posted on
04/12/2011 1:47:02 PM PDT
by
bkepley
To: Responsibility2nd
That only works if there are parentheses around the 48/2. There aren't. In computing, the logics are as follows - anything in parentheses first, then multiplication, then division.
So logically, it would be:
1) 9+3 = 12
2) 2*12 = 24
3)48/24 = 2
38
posted on
04/12/2011 1:47:09 PM PDT
by
IYAS9YAS
(Rose, there's a Messerschmit in the kitchen. Clean it up, will ya?)
To: buccaneer81
I prefer the explanation in post 351.
39
posted on
04/12/2011 1:47:46 PM PDT
by
Lazamataz
(The Democrat Party is Communist. The Republican Party is Socialist. The Tea Party is Capitalist.)
To: stefanbatory
in order for it to be 288, it would need to read: 48/(2(9+3)) in order for it to be 288 2, it would need to read: 48/(2(9+3)) You got it backward.
40
posted on
04/12/2011 1:48:51 PM PDT
by
RobertClark
(On a long enough timeline the survival rate for everyone drops to zero.)
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