Lithumist Posted July 5, 2010 Author Share Posted July 5, 2010 here is a word problem i found, it took me about 20 minutes to find out the answer and i dont even know if it's correct. Here's the problem:1 brick weighs 1kg plus half of a brick. How much does a brick and a half weigh?My answer:>! 3kg>! i used algebra to work it out.1 brick is 1kg plus half of a brick.half of a brick plus half of a brick is a brick.so doesnt that mean the half of a brick is 1kg? :huh:if half of a brick is 1kg, then a brick must be 2kgthen a brick and a half is 3kg What do you guys think the answer is and why Link to comment Share on other sites More sharing options...
lollicat Posted July 5, 2010 Share Posted July 5, 2010 I'm a bit confused. 1 brick is 1.5kg, or 1 brick is 1kg? If the latter, then it would be 1.5kg? I don't get it. xD Link to comment Share on other sites More sharing options...
Lithumist Posted July 5, 2010 Author Share Posted July 5, 2010 1 brick = xx = 1kg + x/2Does that help you? Link to comment Share on other sites More sharing options...
Draken Posted July 5, 2010 Share Posted July 5, 2010 he is saying 1.5 bricks = 1kgor saying 1 brick = 1kg and asking for how much 1.5 would be which is 1brick =1kg so 1.5 bricks =1.5kgyour english is hard to understand Link to comment Share on other sites More sharing options...
Homicidal Monkey Posted July 5, 2010 Share Posted July 5, 2010 @Lith:> 1 brick = x> x = 1kg + x/2x - x/2 = 1kgx(1 - 1/2) = 1kgx(1/2) = 1kg**x = 2kg**check your math. Link to comment Share on other sites More sharing options...
Robin Posted July 5, 2010 Share Posted July 5, 2010 x = 1x + x = xx**xx = 2kg**Fabio is right. Link to comment Share on other sites More sharing options...
Lithumist Posted July 5, 2010 Author Share Posted July 5, 2010 @Draken:> he is saying 1.5 bricks = 1kg> > or saying 1 brick = 1kg and asking for how much 1.5 would be which is 1brick =1kg so 1.5 bricks =1.5kgnope, im saying that 1 brick weighs 1kg + half of the weight of a brickunderstand now?@Zetta:> @Lith:> > > 1 brick = x> > x = 1kg + x/2> > x - x/2 = 1kg> x(1 - 1/2) = 1kg> x(1/2) = 1kg> **x = 2kg**> > check your math.sorry i ment that x is the weight of 1 brick.The question asks what is the weight of 1 brick + the weight of half a brick.The question also says the the weight of 1 brick is 1kg + the weight of half of a brickSo if x is the weight of a brick…x = 1kg + 1/2x is equal to 1 killogram plus the weight of half a brick. Link to comment Share on other sites More sharing options...
Homicidal Monkey Posted July 5, 2010 Share Posted July 5, 2010 also it should be> 1 brick is 1kg plus 1/2 bricksox = 1 brickx = 1kg + x/2x = 1kg + (1kg + x/2)/2x = 1kg + (1kg + (1kg + x/2)/2)/2x = 1kg + (1kg + (1kg + (1kg + x/2)/2)/2)/2…x = 1kg + (1kg + (1kg + (1kg + (1kg + (1kg + (1kg + (1kg + (1kg + (1kg + (1kg + x/2) / 2) / 2) / 2) / 2) / 2) / 2) / 2) / 2) / 2) / 2) / 2) / 2![](http://rageguy.com/RageGuy_FFFUUUU.png) Link to comment Share on other sites More sharing options...
xelander Posted July 5, 2010 Share Posted July 5, 2010 One brick = 1kg + Brick/2 = 1.5kg1.5/2 = 0.750.75 + 1.5 = 2.25? Link to comment Share on other sites More sharing options...
Homicidal Monkey Posted July 5, 2010 Share Posted July 5, 2010 (cont)x = 1 brickx = 1kg + x/2x = 1kg + (1kg + x/2)/2x = Σ[k = 0 to inf](x/2^k) + 1lim[k -> inf](1/2^k) = 0lim(Σ[k = 0 to inf](1/2^k)) = 1x = 1 + 1x = 2thats how you solve it properly. So everyone, STOP DUCKING TRYING TO SOLVE IT. Unless you find an error in my math, its solved. Link to comment Share on other sites More sharing options...
Robin Posted July 5, 2010 Share Posted July 5, 2010 x = 1 brickx+x = 2 brickx = 1kgx+x = 2kg Link to comment Share on other sites More sharing options...
balliztik1 Posted July 5, 2010 Share Posted July 5, 2010 @Zetta:> everyone, STOP DUCKING TRYING TO SOLVE IT.He had already solved it correctly in the first post…@Lith:> **How much does a brick and a half weigh?**@Lith:> **a brick and a half is 3kg**Both the Calculus way and the Algebra way are acceptable. Geometry tiemz? ;D Link to comment Share on other sites More sharing options...
Godlord Posted July 5, 2010 Share Posted July 5, 2010 What the heck are you guys doing? And since when is this Yahoo! Answers?"_1 brick weighs 1kg plus half of a brick. How much does a brick and a half weigh?_"**Conventional**:b = the weight of a brick.**Provided**:b = 1 + 1/2b1/2b = 1b = 2**Questioned**:3/2b = ?**Solution**:3/2b = b + 1/2b3/2b = 2 + 1/2.23/2b = 2 + 13/2b = 3**Proof:**3/2b = 33b = 6b = 2**Answer:**A whole brick and a half brick together have a weight of three kilogrammes.Regards, Stephan.**P.S.** learn to answer the question, which was: "How much does a brick and a half weigh?" and not: "How much does a brick weigh?" Link to comment Share on other sites More sharing options...
Godlord Posted July 5, 2010 Share Posted July 5, 2010 I hope you guys will shit some brix.Regards, Stephan. Link to comment Share on other sites More sharing options...
Robin Posted July 5, 2010 Share Posted July 5, 2010 _"1 brick weighs 1kg plus half of a brick. How much does a brick and a half weigh?"_3kg.I did it with less maths than you lot! ;D Link to comment Share on other sites More sharing options...
Godlord Posted July 5, 2010 Share Posted July 5, 2010 That's what she said.Regards, Stephan. Link to comment Share on other sites More sharing options...
Anna Comnena Posted July 6, 2010 Share Posted July 6, 2010 @Stephan:> I hope you guys will shit some brix.> > Regards,> Â Stephan.![](http://img.photobucket.com/albums/v400/annacomnena/silly/reactions/kagami_smile.jpg)In the context of this thread, that term actually made me laugh. Link to comment Share on other sites More sharing options...
defendersdef Posted July 6, 2010 Share Posted July 6, 2010 @Stephan:> That's what she said.> > Regards,> Â Stephan.>! ![](http://i114.photobucket.com/albums/n254/faustus777/TheOffice-ThatsWhatSheSaid-Michael.jpg)I say x=Q+p=ZIm not really good with math so i say 2. Link to comment Share on other sites More sharing options...
Lukin Posted July 6, 2010 Share Posted July 6, 2010 If a brick weighs 1kg and a half brick..Wouldn't we need to know what the half brick weighs, because it could be more than the 1kg provided? It doesn't say that the brick weighs 1kg, just that with the half brick it does.If not the most logical is a half brick is 0.5kg and then its 1.5kg per brick, but then the half of a brick is 0.75kg.. Mindfuck. Link to comment Share on other sites More sharing options...
Lithumist Posted July 6, 2010 Author Share Posted July 6, 2010 @Lukin:> If a brick weighs 1kg and a half brick..> Wouldn't we need to know what the half brick weighs, because it could be more than the 1kg provided? It doesn't say that the brick weighs 1kg, just that with the half brick it does.> If not the most logical is a half brick is 0.5kg and then its 1.5kg per brick, but then the half of a brick is 0.75kg.. Mindfuck.What do you add to half a brick to get a whole brick?Half a brick.And the question says the weight of 1 brick is 1kg + the weight of half a brick.the only other thing you could add to half a brick to get a whole brick, is half a brick.Therefore half a brick must be 1kg. Thats the hard part done.Now you know that half a bick is 1kg, so a whole brick is 2kg.So a brick and a half is 3kg. Link to comment Share on other sites More sharing options...
Drummerpete Posted July 6, 2010 Share Posted July 6, 2010 No.1 brick = 2kg1kg + 1/2 of a brick = 2kg. Link to comment Share on other sites More sharing options...
Lithumist Posted July 7, 2010 Author Share Posted July 7, 2010 @Stephan:> **P.S.** learn to answer the question, which was: "How much does a brick and a half weigh?" and not: "How much does a brick weigh?" Link to comment Share on other sites More sharing options...
Akselj Posted July 7, 2010 Share Posted July 7, 2010 @Petey:> No.> 1 brick = 2kg> 1kg + 1/2 of a brick = 2kg.How can 2kg + (2kg / 2) be 2kg? Link to comment Share on other sites More sharing options...
Drummerpete Posted July 7, 2010 Share Posted July 7, 2010 Typo, obviously. xD Link to comment Share on other sites More sharing options...
Gwen Posted July 7, 2010 Share Posted July 7, 2010 The real question is:How much wood would a woodchuck chuck, if a woodchuck could chuck wood. Link to comment Share on other sites More sharing options...
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