Math: 6÷2(1+2) = ? | |
Anonymous Coward User ID: 1364351 United States 05/04/2011 12:32 AM Report Abusive Post Report Copyright Violation | |
Possum User ID: 1363098 Australia 05/04/2011 12:32 AM Report Abusive Post Report Copyright Violation | Not another mathematics thread that will go for 60 pages!?&$% Quoting: PossumThe correct answer is 1 (brackets first!) 1 1 1 1 1 We are over the half way mark - can we still make it to 60 pages? 1 1 1 1 ONE! There is no need for temples, no need for complicated philosophies. My brain and my heart are my temples; my philosophy is kindness. Dalai Lama Anyone who doesn't take truth seriously in small matters cannot be trusted in large ones either. Albert Einstein The kingdom of God is within you and all around you. It is not within buildings of wood or stone. Split a piece of wood and you will find me. Look beneath a stone and I am there. Stigmata |
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Anonymous Coward User ID: 905446 United States 05/04/2011 12:35 AM Report Abusive Post Report Copyright Violation | 9 Quoting: speedfreek 1343641Using the order of precedence for calculators and computers, that is.. 6÷2(1+2) = ? step 1, parenthesis 6/2*(3) step 2, proceed left to right: / has same precedence as * 3*(3) step 3, final multiplication 9 The only way you can get 1 is if * has a higher order of precedence than /, which is not true in most computer languages. TJ Changing the original problem to 6/2*(3) will yield 9. This is correct. BUT, the equation we are working with is 6÷2(1+2) which yields 1. Sorry, but that's incorrect. 6/2*(1+2) is exactly the same as 6/2(1+2), or in english, 6 divided by 2 * (1 + 2). In parantheses first, then left to right in order of precendence. It doesn't matter if there is an actual * symbol or not, it still infers multiplication. |
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SMOKY MCPOT User ID: 1361171 United States 05/04/2011 12:38 AM Report Abusive Post Report Copyright Violation | |
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Anonymous Coward User ID: 1364351 United States 05/04/2011 12:39 AM Report Abusive Post Report Copyright Violation | 6÷2(1+2) = 9 Rule 1: First perform any calculations inside parentheses. Rule 2: Next perform all multiplications and divisions, working from left to right. Rule 3: Lastly, perform all additions and subtractions, working from left to right. Rule 1: First perform any calculations inside parentheses. 6÷2(1+2) Rule 2: Next perform all multiplications and divisions, working from left to right. 6÷2(3) 6<Left ÷ Right>2(3) 3(3) = 9 It doesn't get easier than that. I don't know what you don't understand. |
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Wally the Mantis User ID: 1259453 United States 05/04/2011 12:40 AM Report Abusive Post Report Copyright Violation | |
Syrius (OP) User ID: 1289074 United States 05/04/2011 12:40 AM Report Abusive Post Report Copyright Violation | 9 Quoting: speedfreek 1343641Using the order of precedence for calculators and computers, that is.. 6÷2(1+2) = ? step 1, parenthesis 6/2*(3) step 2, proceed left to right: / has same precedence as * 3*(3) step 3, final multiplication 9 The only way you can get 1 is if * has a higher order of precedence than /, which is not true in most computer languages. TJ Changing the original problem to 6/2*(3) will yield 9. This is correct. BUT, the equation we are working with is 6÷2(1+2) which yields 1. Sorry, but that's incorrect. 6/2*(1+2) is exactly the same as 6/2(1+2), or in english, 6 divided by 2 * (1 + 2). In parantheses first, then left to right in order of precendence. It doesn't matter if there is an actual * symbol or not, it still infers multiplication. No need to apologize for being incorrect, but [link to mathworld.wolfram.com] Posting without reading the initial 36 pages of argumentative material will create lapses in your judgement. All around me are familiar faces... Worn out places...Worn out faces... |
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Anonymous Coward User ID: 1319504 United States 05/04/2011 12:43 AM Report Abusive Post Report Copyright Violation | |
SMOKY MCPOT User ID: 1361171 United States 05/04/2011 12:43 AM Report Abusive Post Report Copyright Violation | |
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Anonymous Coward User ID: 1369083 United States 05/04/2011 12:45 AM Report Abusive Post Report Copyright Violation | Alright one more attempt for that bad kid who call this HORSE SHIT Quoting: Anonymous Coward 1369083using distributive property again to get rid of that pest 2 in-front of the ()'s 6÷2(1+2)=2(3÷(1+2))=2(3÷(3)) = 2(1)=2 Ops now its 2, crap. Quick erase erase erase.... Bad example! OK I think I understand how to explain this: Again the DAMN distributive property, 6÷2(1+2)=6÷2+4= 3+4 = 7 OPs, Crap, now its 7. Erase Erase Erase.... Ok kids if you got anything from 1,2,7, or 9 you are right... next question. |
Anonymous Coward User ID: 1364351 United States 05/04/2011 12:45 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 1362610 Spain 05/04/2011 12:46 AM Report Abusive Post Report Copyright Violation | hey guys Quoting: Anonymous Coward 13692526/(2(1+2))=1 6/2(1+2)=9 Any other answer from those two is wrong. I ask again: What exactly does 2(1+2) mean to you? is it not always (2+4) ? why does it suddenly change to (1+2) because there is 6/ in front of it? You must see 2(1+2) as a unity |
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Anonymous Coward User ID: 1362610 Spain 05/04/2011 12:47 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 1364351 United States 05/04/2011 12:48 AM Report Abusive Post Report Copyright Violation | hey guys Quoting: Anonymous Coward 13692526/(2(1+2))=1 6/2(1+2)=9 Any other answer from those two is wrong. I ask again: What exactly does 2(1+2) mean to you? is it not always (2+4) ? why does it suddenly change to (1+2) because there is 6/ in front of it? You must see 2(1+2) as a unity It does change. Because of the order of operations. Rule 1: First perform any calculations inside parentheses. Rule 2: Next perform all multiplications and divisions, working from left to right. Rule 3: Lastly, perform all additions and subtractions, working from left to right. |
SMOKY MCPOT User ID: 1361171 United States 05/04/2011 12:48 AM Report Abusive Post Report Copyright Violation | hey guys Quoting: Anonymous Coward 13692526/(2(1+2))=1 6/2(1+2)=9 Any other answer from those two is wrong. I ask again: What exactly does 2(1+2) mean to you? is it not always (2+4) ? why does it suddenly change to (1+2) because there is 6/ in front of it? You must see 2(1+2) as a unity if thats the case it should be 6/(2(1+2)) humans mother earths killer virus |
Anonymous Coward User ID: 1364351 United States 05/04/2011 12:50 AM Report Abusive Post Report Copyright Violation | Rule 1: First perform any calculations inside parentheses. Rule 2: Next perform all multiplications and divisions, working from left to right. Rule 3: Lastly, perform all additions and subtractions, working from left to right. |
Anonymous Coward User ID: 1319504 United States 05/04/2011 12:51 AM Report Abusive Post Report Copyright Violation | Jesus fucking christ. Distribute Quoting: Anonymous Coward 1319504No... not in this case. How so? I distributed when i saw the question and got one. which is what OP has alrady said you were supposed to get. You are arguing about a fraction sign, when he asked you divide...clearly divide. So yes, you would distriute. |
Anonymous Coward User ID: 1369083 United States 05/04/2011 12:51 AM Report Abusive Post Report Copyright Violation | Alright one more attempt for that bad kid who call this HORSE SHIT Quoting: Anonymous Coward 1369083using distributive property again to get rid of that pest 2 in-front of the ()'s 6÷2(1+2)=2(3÷(1+2))=2(3÷(3)) = 2(1)=2 Ops now its 2, crap. Quick erase erase erase.... Bad example! OK I think I understand how to explain this: Again the DAMN distributive property, 6÷2(1+2)=6÷2+4= 3+4 = 7 OPs, Crap, now its 7. Erase Erase Erase.... Ok kids if you got anything from 1,2,7, or 9 you are right... next question. Just kidding, being a shill/troll in a math thread is hard! Answer is still one, added common failures seen in students work. |
Anonymous Coward User ID: 1362610 Spain 05/04/2011 12:52 AM Report Abusive Post Report Copyright Violation | hey guys Quoting: Anonymous Coward 13692526/(2(1+2))=1 6/2(1+2)=9 Any other answer from those two is wrong. I ask again: What exactly does 2(1+2) mean to you? is it not always (2+4) ? why does it suddenly change to (1+2) because there is 6/ in front of it? You must see 2(1+2) as a unity if thats the case it should be 6/(2(1+2)) if not it would have been written (6/2)(1+2) here 6÷2(1+2) the 2 belongs to 2(1+2) as stated on page 33 |
Anonymous Coward User ID: 1364351 United States 05/04/2011 12:52 AM Report Abusive Post Report Copyright Violation | For those of you getting 1. Do you know your left from your right? Quoting: Anonymous Coward 1364351For those of you getting 9. Do you know what parentheses mean? Yes I do know what parenthesis mean. They are mentioned in the first rule in the order of operations. Rule 1: First perform any calculations inside parentheses. Rule 2: Next perform all multiplications and divisions, working from left to right. Rule 3: Lastly, perform all additions and subtractions, working from left to right. |