tbourner Posted March 12, 2008 Share Posted March 12, 2008 Is transpose even the right word? Can someone switch this formula round for me to get x as the main argument on one side. -((x*y)-x) + (((a*b)-a)*0.95) = (x*0.95) - a I got: ((((a*b)-a)*0.95)+a) / (1-(0.05/y)) = x But it doesn't give the figure I was expecting. Link to comment Share on other sites More sharing options...
michael Posted March 12, 2008 Share Posted March 12, 2008 It saddens me to think that I used to be a whizz at this kind of thing at school but now I wouldn't know where to start. Link to comment Share on other sites More sharing options...
Havard Posted March 12, 2008 Share Posted March 12, 2008 It saddens me to think that I was kack at this at school and now 17 years later I am no better.... Link to comment Share on other sites More sharing options...
tbourner Posted March 12, 2008 Author Share Posted March 12, 2008 I think I've cracked it now, should be: (((((a*b)-a)*0.95)+a)/y) / (1-(0.05/y)) = x Link to comment Share on other sites More sharing options...
Charlotte Posted March 12, 2008 Share Posted March 12, 2008 It saddens me to think that I used to be a whizz at this kind of thing at school but now I wouldn't know where to start. It saddens me to think that I was kack at this at school and now 17 years later I am no better.... Repost...? Ermm clearly I'm kack at reading. Link to comment Share on other sites More sharing options...
RiceRocket Posted March 12, 2008 Share Posted March 12, 2008 Is transpose even the right word? No it was Simultaneous equations and I was crap at it too. I even questioned my Maths teacher as too what's the point of learning this stuff was Link to comment Share on other sites More sharing options...
Havard Posted March 12, 2008 Share Posted March 12, 2008 Repost...? You can only claim a repost if it is unintentional..!! Sorry Charlotte, I don't make the rules.... H. Link to comment Share on other sites More sharing options...
Charlotte Posted March 12, 2008 Share Posted March 12, 2008 You can only claim a repost if it is unintentional..!! Sorry Charlotte, I don't make the rules.... H. Who makes these rules...? Link to comment Share on other sites More sharing options...
michael Posted March 12, 2008 Share Posted March 12, 2008 Who makes these rules...? The weevils Link to comment Share on other sites More sharing options...
MrRalphMan Posted March 12, 2008 Share Posted March 12, 2008 The weevils Are they the guys that wobble but don't fall over? Link to comment Share on other sites More sharing options...
Charlotte Posted March 12, 2008 Share Posted March 12, 2008 Are they the guys that wobble but don't fall over? No, the things you find in gone off flour. Link to comment Share on other sites More sharing options...
Tones Posted March 12, 2008 Share Posted March 12, 2008 Jesus, those kinda sums make me shiver, used to hate them in school Fecking more of them doing my apprenticeship too Link to comment Share on other sites More sharing options...
mathew Posted March 12, 2008 Share Posted March 12, 2008 Are they the guys that wobble but don't fall over? hahahahaha thats the funniest thing ive ever heard!! man you are one funny guy!! :-) Link to comment Share on other sites More sharing options...
MrRalphMan Posted March 12, 2008 Share Posted March 12, 2008 no those are weebles Yeah, I was trying to be funny.. I guess I suck at that as well.. Link to comment Share on other sites More sharing options...
mathew Posted March 12, 2008 Share Posted March 12, 2008 Yeah, I was trying to be funny.. I guess I suck at that as well.. edited my original post to make u feel better Link to comment Share on other sites More sharing options...
supraguye Posted March 12, 2008 Share Posted March 12, 2008 I got x = (a(.95b+.05)) / (y-.05) Link to comment Share on other sites More sharing options...
Havard Posted March 12, 2008 Share Posted March 12, 2008 Yeah, I was trying to be funny.. I guess I suck at that as well.. Personally I think you rock!! That was my kind of joke, where you deliberately get it wrong with a similar word. Unfortunately most people don't see the joke and correct you as if you are thick..... H. Link to comment Share on other sites More sharing options...
probrox Posted March 12, 2008 Share Posted March 12, 2008 I got: x = (y(0.95((ab-b)+a)))/0.95 Link to comment Share on other sites More sharing options...
Ric Posted March 12, 2008 Share Posted March 12, 2008 that's what pisses me off about maths, when.. ever are you going to need to work something like that out in life. Or even what do all the a b x y stand for/mean? just letters Link to comment Share on other sites More sharing options...
MrRalphMan Posted March 12, 2008 Share Posted March 12, 2008 Personally I think you rock!! That was my kind of joke, where you deliberately get it wrong with a similar word. Unfortunately most people don't see the joke and correct you as if you are thick..... H. hahahahaha thats the funniest thing ive ever heard!! man you are one funny guy!! :-) Ah you guys just made me feel so much better.. Link to comment Share on other sites More sharing options...
merckx Posted March 12, 2008 Share Posted March 12, 2008 Can someone switch this formula round for me to get x as the main argument on one side. -((x*y)-x) + (((a*b)-a)*0.95) = (x*0.95) - a This is over complicated so I simplified it by removing unnecessary brackets, you don't need to use the multiply sign either, eg xy = x*y. Therefore: -(xy-x) +0.95(ab-a) = 0.95x - a And the end result is: x= a(0.95b+0.05)/(y-0.5) Link to comment Share on other sites More sharing options...
RiceRocket Posted March 12, 2008 Share Posted March 12, 2008 And the end result is: x= a(0.95b+0.05)/(y-0.5) Phew I'll be able to sleep tonight now Link to comment Share on other sites More sharing options...
merckx Posted March 12, 2008 Share Posted March 12, 2008 I got x = (a(.95b+.05)) / (y-.05) Phew I'll be able to sleep tonight now lol I couldn't let a challenge like that go. It must be correct, supraguye got the same answer too. Link to comment Share on other sites More sharing options...
Tannhauser Posted March 12, 2008 Share Posted March 12, 2008 when.. ever are you going to need to work something like that out in life. I got the impression that Trev was actually working something out that to, hence the question. That would mean that he needs to work something out at least once "in life". even what do all the a b x y stand for/mean? just letters I think it's unlikely that the letters don't actually represent some other quantities, unless he's mathematically reworking the alphabet for pleasure and profit, however it's unnecessary for Trev to mention these quantities in order to rearrange the equation . Link to comment Share on other sites More sharing options...
tbourner Posted March 12, 2008 Author Share Posted March 12, 2008 I got the impression that Trev was actually working something out that to, hence the question. That would mean that he needs to work something out at least once "in life". I think it's unlikely that the letters don't actually represent some other quantities, unless he's mathematically reworking the alphabet for pleasure and profit, however it's unnecessary for Trev to mention these quantities in order to rearrange the equation . Cheers Cliff, and both true. Also thanks to: I got x = (a(.95b+.05)) / (y-.05) I got: x = (y(0.95((ab-b)+a)))/0.95 This is over complicated so I simplified it by removing unnecessary brackets, you don't need to use the multiply sign either, eg xy = x*y. Therefore: -(xy-x) +0.95(ab-a) = 0.95x - a And the end result is: x= a(0.95b+0.05)/(y-0.5) My one actually works, it was put into excel anyway so it doesn't really matter how confusing the equation is!! I'll probably use one of these ones if they work as well - because I'll probably be bored tomorrow and swapping equations in excel cells for equations which do exactly the same thing will pass a few minutes. //edit: Merc, I oversimplified it because I always manage to confuse people who don't seem to understand the BODMAS principles, it's usually easier for most people if they can clearly see what order the equation needs to be done in!!! Link to comment Share on other sites More sharing options...
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