mathsboy Posted January 7, 2010 Report Share Posted January 7, 2010 can someone explain this to me i need to revise this. Quote Link to comment Share on other sites More sharing options...
Flex Posted January 7, 2010 Report Share Posted January 7, 2010 http://www.bbc.co.uk/schools/gcsebitesize/maths/algebra/simultaneoushirev1.shtml Quote Link to comment Share on other sites More sharing options...
Superstition Posted January 7, 2010 Report Share Posted January 7, 2010 Quote Link to comment Share on other sites More sharing options...
mathsboy Posted January 7, 2010 Author Report Share Posted January 7, 2010 http://www.bbc.co.uk/schools/gcsebitesize/maths/algebra/simultaneoushirev1.shtmlnah your not understanding me. Im saying i need someone to explain it to me cos I dont get it Quote Link to comment Share on other sites More sharing options...
thinkingthuglife Posted January 7, 2010 Report Share Posted January 7, 2010 you+this question+your life+your genes= a complete waste of time. How about that. f*ck of wi yr bullshit. hope you fail your exam. Enjoy flipping sum burgers yh. Extra bbq sauce plz. Quote Link to comment Share on other sites More sharing options...
Lazy Posted January 7, 2010 Report Share Posted January 7, 2010 Bro your slipping if you have left it this late to understand it, you should take maths like weight training and do it every day or every otheronce you do a topic you go home and bang out the excersise, do like 20 question so that you understand itsubscribe to this channel really good help for you maths probably the best on youtubeBesides watching one video tho, watch like 2-3 different video's on how to do it so that your seeing more then one method on how to attempt the question Quote Link to comment Share on other sites More sharing options...
Grafter Posted January 7, 2010 Report Share Posted January 7, 2010 c/s the weight trainingthe absolute only way to get it is to have a worked example, go over it, and pratice practice practicesome times i found having a teacher made it bit worse, jus need the worked examples, all of them Quote Link to comment Share on other sites More sharing options...
mathsboy Posted January 13, 2010 Author Report Share Posted January 13, 2010 ok i need help with this one: 2x-5y=4 5x-2y=3 I got x=23/29 y=14/29 but its wrong? Quote Link to comment Share on other sites More sharing options...
Taurus Posted January 13, 2010 Report Share Posted January 13, 2010 you+this question+your life+your genes= a complete waste of time. How about that. f*ck of wi yr bullshit. hope you fail your exam. Enjoy flipping sum burgers yh. Extra bbq sauce plz. pmsl Quote Link to comment Share on other sites More sharing options...
Dubby Posted January 13, 2010 Report Share Posted January 13, 2010 someone help me out with division algorithm/theorem, sh*t's making no sense to me, just need a push in the right direction (link to a decent site maybe) anyone know a decent Maths/Logic/Sets book for computer science? Quote Link to comment Share on other sites More sharing options...
mathsboy Posted January 13, 2010 Author Report Share Posted January 13, 2010 someone help me out with division algorithm/theorem, sh*t's making no sense to me, just need a push in the right direction (link to a decent site maybe) anyone know a decent Maths/Logic/Sets book for computer science? what do you want to know? It just states that a number can be written as Ax+b where 0<=b<x Quote Link to comment Share on other sites More sharing options...
A Bit Better Posted January 13, 2010 Report Share Posted January 13, 2010 ok i need help with this one: 2x-5y=4 5x-2y=3 I got x=23/29 y=14/29 but its wrong? y = -2/3 x = 1/3 Quote Link to comment Share on other sites More sharing options...
Flex Posted January 13, 2010 Report Share Posted January 13, 2010 lol, pos'd for u signature / stealing it for my facebook, i apologise Quote Link to comment Share on other sites More sharing options...
A Bit Better Posted January 13, 2010 Report Share Posted January 13, 2010 That's cool, I stole it from Drake. Quote Link to comment Share on other sites More sharing options...
Guest Triple XXX Posted January 13, 2010 Report Share Posted January 13, 2010 vomit on my d*ck, im f*ckin sick Quote Link to comment Share on other sites More sharing options...
Guest Esquilax Posted January 13, 2010 Report Share Posted January 13, 2010 I automatically think a topic is about/ involves me if there's a word that starts with 'EQ' in the beginning Quote Link to comment Share on other sites More sharing options...
Guest Triple XXX Posted January 13, 2010 Report Share Posted January 13, 2010 it dosnt tho its "SI" Quote Link to comment Share on other sites More sharing options...
Guest Lens Posted January 13, 2010 Report Share Posted January 13, 2010 ok i need help with this one: 2x-5y=4 5x-2y=3 I got x=23/29 y=14/29 but its wrong? solve by substution Quote Link to comment Share on other sites More sharing options...
Guest Lens Posted January 13, 2010 Report Share Posted January 13, 2010 Lens method 1: multiply top equation by 2.5 gives You 5x - 12.5y = 10 now subtract other equation 5x - 12.5y = 10 - 5x - 2 y = 3 gives -10.5y = 7 y = -7/10.5 or y= -2/3 if You're with me so far, I'll go on Quote Link to comment Share on other sites More sharing options...
Guest Lens Posted January 13, 2010 Report Share Posted January 13, 2010 Lens method 2: solve for x, then substitute 2x - 5y = 4 2x = 4 + 5y x = (4+5y)/2 x = 2 + 2.5y now instead of x, in 2nd equation, write 2+2.5 y, coz that = x 5x - 2y = 3 becomes 5 (2 +2.5y)- 2y = 3. multiply out, gives 10 + 12.5y - 2y = 3 subtract like terms, gives 10 + 10.5y = 3 10.5y = 3-10 10.5y = -7 y= -7/10.5 y=-2/3 Quote Link to comment Share on other sites More sharing options...
mathsboy Posted January 13, 2010 Author Report Share Posted January 13, 2010 Lens method 1: multiply top equation by 2.5 gives You 5x - 12.5y = 10 now subtract other equation 5x - 12.5y = 10 - 5x - 2 y = 3 gives -10.5y = 7 y = -7/10.5 or y= -2/3 if You're with me so far, I'll go on yeh im with you. why do you substitute for y into either equation i dont get that Quote Link to comment Share on other sites More sharing options...
Guest Lens Posted January 13, 2010 Report Share Posted January 13, 2010 quote me where i've done a step You dont understand. Quote Link to comment Share on other sites More sharing options...
Dubby Posted January 14, 2010 Report Share Posted January 14, 2010 you do know he's being a stupid f*ck*ng prick right? Quote Link to comment Share on other sites More sharing options...
Grafter Posted January 14, 2010 Report Share Posted January 14, 2010 is it ashman again Quote Link to comment Share on other sites More sharing options...
Dubby Posted January 14, 2010 Report Share Posted January 14, 2010 I think so. Seems like the same being a stupid f*ck*ng prick technique. Comparing the posts in this and the topic about the hood DVD comedy sketch, you can see he has a way of appearing to overlook obvious things that are right in front of him and making a post that makes other people want to correct him and post further and so on, eventually leading some long off stupid argument until whoever's fallen for the bait can't be bothered any more. Quote Link to comment Share on other sites More sharing options...
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