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# Windows 7: 48÷2(9+3) = ?

 View Poll Results: Which answer do you prefer? 2 35 58.33% 288 25 41.67% Voters: 60. You may not vote on this poll

 12 May 2011 #11 mickey megabyte ultimate 64 sp1 8,601 posts Quote: Originally Posted by SledgeDG    Quote: Originally Posted by mickey megabyte i protest! (48÷2)(9+3) is not valid syntax for arithmetic! - at least it wasn't when they were trying to educate me.4 I don't see anything wrong with Bill's Syntax. I learned that operations with Brackets (or are those parentheses?) are assumed Multiplications unless specified otherwise. Letters in Algebra are only substitutes/placeholders for numbers, so it wouldn't make any sense at all to apply a different set of rules here maybe things have changed since i went to school, but back then different syntatical rules applied in arithmetic and algebra. for instance, in arithmetic 52 = 52 (ie 5*10 + 2), however in algebra, it's different: for example, ab=a*b, so it does make sense to apply a different set of rules in the two separate fields of mathematics. at least, it makes sense to me My System Specs
 12 May 2011 #12 SmurofNeves Seven ultimate 32bit 461 posts Nelspruit(South Africa) This goes both ways I'd say... My System Specs
 12 May 2011 #13 rbeldua MS Windows 8 1,796 posts Near You Quote: Originally Posted by Bill2 He he Micky, you went to school a loooong time ago. Ok, suppose we solve like this. 48÷2(9+3) = 48÷2(12) Now, as per BODMAS, the division operator takes precedence over the (implied) multiplication operator so: =24(12) =288. Can I vote again? parenthesis is used to divide pertaining to an operation to be done in this case 48÷2(9+3), 2(9+3) note that parenthesis is used in (9+3) means do this first (9+3)=12, next 2(12) still parenthesis has not been removed so 2(12)=24, final operation is 48÷24=2 another method for 48÷2(9+3) is to distribute 2 inside (9+3), (18+6)=24, then 48÷24=2 (Distributive Law) My System Specs
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 12 May 2011 #14 oreo27 Windows 7 Ultimate x64 Service Pack 1 531 posts Philippines Quote: Originally Posted by rbeldua    Quote: Originally Posted by Bill2 He he Micky, you went to school a loooong time ago. Ok, suppose we solve like this. 48÷2(9+3) = 48÷2(12) Now, as per BODMAS, the division operator takes precedence over the (implied) multiplication operator so: =24(12) =288. Can I vote again? parenthesis is used to divide pertaining to an operation to be done in this case 48÷2(9+3), 2(9+3) note that parenthesis is used in (9+3) means do this first (9+3)=12, next 2(12) still parenthesis has not been removed so 2(12)=24, final operation is 48÷24=2 Distributive Law Are you a professor of some sort? My System Specs
 12 May 2011 #15 Bill2 Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86 5,145 posts Distributive law says get rid of brackets, but does it say when? My System Specs
 12 May 2011 #16 rbeldua MS Windows 8 1,796 posts Near You [QUOTE=oreo27 Are you a professor of some sort?[/QUOTE] where? who me? no... My System Specs
 12 May 2011 #17 rbeldua MS Windows 8 1,796 posts Near You Quote: Originally Posted by Bill2 Distributive law says get rid of brackets, but does it say when? yes they did in some text books. mostly basics My System Specs
 12 May 2011 #18 Bill2 Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86 5,145 posts By adding the 9 + 3 in the brackets, the distributive law has been taken care of. After that BODMAS takes over. My System Specs
 12 May 2011 #19 oreo27 Windows 7 Ultimate x64 Service Pack 1 531 posts Philippines Here's the final verdict. It's 288. I stand corrected. I'll post my source if you guys would like me to. My System Specs
 12 May 2011 #20 SmurofNeves Seven ultimate 32bit 461 posts Nelspruit(South Africa) I change my mind I should've gone 288... My System Specs