Enter Apotheosis Posted April 9, 2011 Share Posted April 9, 2011 Yeah, why don't you do 16/2 before you do 2*2? If MD is from left to right, why does multiplication come first in this one? Annnnd this is why people don't write equations this way. For ****'s sake, this **** is less intuitive than basic calculus. how do you get 81? By botching the order of operations like the rest of us? Link to comment Share on other sites More sharing options...
Slacky McSlackAss Posted April 9, 2011 Share Posted April 9, 2011 Yeah, why don't you do 16/2 before you do 2*2? If MD is from left to right, why does multiplication come first in this one? I honestly don't know. Like I said, I found it weird that my mind put the 2*2 together this time but didn't in the OP. Whatever, I still say it's a ****ed up notation that only encourages ambiguity and confusion. Link to comment Share on other sites More sharing options...
Chiefinonhaze Posted April 9, 2011 Author Share Posted April 9, 2011 Well 5 is the right answer for that one, congratulations douche. lol jk Link to comment Share on other sites More sharing options...
Dr. Do Itch Big Posted April 9, 2011 Share Posted April 9, 2011 to me there are only 2 solutions 5 and 17, dunno why [] is different. I have no idea how you get 81. Link to comment Share on other sites More sharing options...
Slacky McSlackAss Posted April 9, 2011 Share Posted April 9, 2011 Annnnd this is why people don't write equations this way. For ****'s sake, this **** is less intuitive than basic calculus. This. it's literally open to interpretation. Hence why in the mathematical world, this equation would contain two more sets of parentheses. In both computer programming and math, I've always been told to use as many parentheses as I feel are necessary to avoid confusion when another person is reading my work. ---------- Post added April-9th-2011 at 02:04 AM ---------- Well 5 is the right answer for that one, congratulations douche. lol jk Seriously, **** politics. ES needs more discussions like this. Link to comment Share on other sites More sharing options...
Enter Apotheosis Posted April 9, 2011 Share Posted April 9, 2011 to me there are only 2 solutions 5 and 17, dunno why [] is different. I have no idea how you get 81. Look at his work. He got slightly befuddled by the nested parentheses and tried to complete the outer one while treating the inner one as a separate entity. Link to comment Share on other sites More sharing options...
AsburySkinsFan Posted April 9, 2011 Share Posted April 9, 2011 how do you get 81? I even showed my work. 16 ÷ 2[8-3(4-2)] + 1. 4-2=2 16 ÷ 2[8-3(2)] + 1. 8-3=5 16 ÷ 2[5(2)] + 1. 5*2=10 16 ÷ 2[10] + 1 16÷2=8 8[10]+1 8*10=80 80+1 81 It's essentially the same problem as the first with the exception of the second multiplication function and the final addition. Link to comment Share on other sites More sharing options...
Chiefinonhaze Posted April 9, 2011 Author Share Posted April 9, 2011 This. it's literally open to interpretation. Hence why in the mathematical world, this equation would contain two more sets of parentheses. In both computer programming and math, I've always been told to use as many parentheses as I feel are necessary to avoid confusion when another person is reading my work. ---------- Post added April-9th-2011 at 02:04 AM ---------- Seriously, **** politics. ES needs more discussions like this. Exactly, the lack of Math education in America is what is leaving us behind. I'm glad Indians like me are holding it down. Link to comment Share on other sites More sharing options...
Enter Apotheosis Posted April 9, 2011 Share Posted April 9, 2011 In both computer programming and math, I've always been told to use as many parentheses as I feel are necessary to avoid confusion when another person is reading my work. That's always been my habit in both mathematics and coding, although I haven't really done much of either in the last two years. Link to comment Share on other sites More sharing options...
Slacky McSlackAss Posted April 9, 2011 Share Posted April 9, 2011 I even showed my work.16 ÷ 2[8-3(4-2)] + 1. 4-2=2 16 ÷ 2[8-3(2)] + 1. 8-3=5 16 ÷ 2[5(2)] + 1. 5*2=10 16 ÷ 2[10] + 1 16÷2=8 8[10]+1 8*10=80 80+1 81 and heres your mistake. 8-3=5 16 ÷ 2[5(2)] + 1. Even inside parentheses (or brackets in this case) PEMDAS still applies. You subtracted before mutiplying. it should be 16 ÷ 2[8-6)] + 1. You need to multiply the 3(2) before subtracting. Link to comment Share on other sites More sharing options...
Enter Apotheosis Posted April 9, 2011 Share Posted April 9, 2011 I even showed my work.16 ÷ 2[8-3(4-2)] + 1. 4-2=2 16 ÷ 2[8-3(2)] + 1. 8-3=5 16 ÷ 2[5(2)] + 1. 5*2=10 16 ÷ 2[10] + 1 16÷2=8 8[10]+1 8*10=80 80+1 81 That was your mistake. After completing the (4-2) you move to the (8-3*2) and start over with the order of operations. Thus, (8-6). Link to comment Share on other sites More sharing options...
Chiefinonhaze Posted April 9, 2011 Author Share Posted April 9, 2011 This. it's literally open to interpretation. Hence why in the mathematical world, this equation would contain two more sets of parentheses. In both computer programming and math, I've always been told to use as many parentheses as I feel are necessary to avoid confusion when another person is reading my work. ---------- Post added April-9th-2011 at 02:04 AM ---------- Seriously, **** politics. ES needs more discussions like this. This. it's literally open to interpretation. Hence why in the mathematical world, this equation would contain two more sets of parentheses. In both computer programming and math, I've always been told to use as many parentheses as I feel are necessary to avoid confusion when another person is reading my work. ---------- Post added April-9th-2011 at 02:04 AM ---------- Seriously, **** politics. ES needs more discussions like this. Exactly, the lack of Math education in America is what is leaving us behind. I'm glad Indians like me are holding it down. Link to comment Share on other sites More sharing options...
Slacky McSlackAss Posted April 9, 2011 Share Posted April 9, 2011 Exactly, the lack of Math education in America is what is leaving us behind. I'm glad Indians like me are holding it down. Hey, don't forget about me. This desi loves math. Link to comment Share on other sites More sharing options...
AsburySkinsFan Posted April 9, 2011 Share Posted April 9, 2011 Look at his work. He got slightly befuddled by the nested parentheses and tried to complete the outer one while treating the inner one as a separate entity. The same way the initial problem was done. Link to comment Share on other sites More sharing options...
Vooskin Posted April 9, 2011 Share Posted April 9, 2011 It's 5.. You cannot just go changing around operations to what you feel is the correct answer. I took one look at this and the answer is five just like the answer to the OP problem is 2. We need less discussions like this. My non redskins friends are reading the board, messaging me on facebook laughing and calling skins fans stupid. This is basic **** guys. Link to comment Share on other sites More sharing options...
Enter Apotheosis Posted April 9, 2011 Share Posted April 9, 2011 Exactly, the lack of Math education in America is what is leaving us behind. I'm glad Indians like me are holding it down. I'm disappointed Indians like you haven't learned to avoid double posting Link to comment Share on other sites More sharing options...
Enter Apotheosis Posted April 9, 2011 Share Posted April 9, 2011 It's 5.. You cannot just go changing around operations to what you feel is the correct answer. I took one look at this and the answer is five just like the answer to the OP problem is 2. We need less discussions like this. My non redskins friends are reading the board, messaging me on facebook laughing and calling skins fans stupid. This is basic **** guys. Link to comment Share on other sites More sharing options...
Dr. Do Itch Big Posted April 9, 2011 Share Posted April 9, 2011 for comparison http://www.wolframalpha.com/input/?i=16+%C3%B7+2[8-3%284-2%29]+%2B+1 http://www.wolframalpha.com/input/?i=16+%C3%B7+2*[8-3%284-2%29]+%2B+1 brackets carry a parenthesis around themselves? if not shown its implied? Link to comment Share on other sites More sharing options...
AsburySkinsFan Posted April 9, 2011 Share Posted April 9, 2011 and heres your mistake.8-3=5 16 ÷ 2[5(2)] + 1. Even inside parentheses (or brackets in this case) PEMDAS still applies. You subtracted before mutiplying. it should be 16 ÷ 2[8-6)] + 1. You need to multiply the 3(2) before subtracting. Then why doesn't -6 remain in the parentheses? ---------- Post added April-9th-2011 at 02:12 AM ---------- That was your mistake. After completing the (4-2) you move to the (8-3*2) and start over with the order of operations. Thus, (8-6). Ahh and now you know why I barely passed algebra II. LoL Link to comment Share on other sites More sharing options...
Vooskin Posted April 9, 2011 Share Posted April 9, 2011 the smiley is because you agree right? the answer is 2 Link to comment Share on other sites More sharing options...
RansomthePasserby Posted April 9, 2011 Share Posted April 9, 2011 But it shouldn't be. The parentheses on one problem explains multiplication. I'm not really sure what you mean, but I guarantee if the problem was written (48/2)(9+3), then most everyone would get the right answer and there wouldn't be a debate at all. Link to comment Share on other sites More sharing options...
Chiefinonhaze Posted April 9, 2011 Author Share Posted April 9, 2011 I posted this on FB and got 50 replies, a lot of people saying 2 is the answer Link to comment Share on other sites More sharing options...
Enter Apotheosis Posted April 9, 2011 Share Posted April 9, 2011 the smiley is because you agree right? the answer is 2 I agree with the spirit of the answer... but it is, technically, wrong. Link to comment Share on other sites More sharing options...
AsburySkinsFan Posted April 9, 2011 Share Posted April 9, 2011 the smiley is because you agree right? the answer is 2 No, we're laughing at your friends who think it's 2 instead of 288. Link to comment Share on other sites More sharing options...
Slacky McSlackAss Posted April 9, 2011 Share Posted April 9, 2011 I'm not really sure what you mean, but I guarantee if the problem was written (48/2)(9+3), then most everyone would get the right answer and there wouldn't be a debate at all. Parentheses eliminate ambiguity. The question is, where do the parentheses go in the OP? is it (48/2)(9+3) or 48/(2(9+3)) Link to comment Share on other sites More sharing options...
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