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lIllIIIllIlIIlIlIIllIllIIl
Stranger

Registered: 12/16/04
Posts: 11,123
Loc: Texas
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change your mind
#7483074 - 10/03/07 10:35 PM (16 years, 3 months ago) |
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Let's say I lend you $10.
In your ledger you write -10 USD, since you are now ten dollars in the hole.
The next day I tell you that you can forget about the loan and you can have the money.
Now you have +10 USD.
(-10)X(-1) = +10
So it seems that multiplication by negative one is equivalent to the reversal of an idea? Can you think of any other real examples that involve multiplication of negative numbers?
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Icelander
The Minstrel in the Gallery



Registered: 03/15/05
Posts: 95,368
Loc: underbelly
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Let's say I lend you $10.
I will PM you my address. Could you make it $50?
-------------------- "Don't believe everything you think". -Anom. " All that lives was born to die"-Anom. With much wisdom comes much sorrow, The more knowledge, the more grief. Ecclesiastes circa 350 BC
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DieCommie


Registered: 12/11/03
Posts: 29,258
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Are you saying two wrongs make a right?
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krypto2000
Unknown


Registered: 12/05/06
Posts: 11,579
Last seen: 4 years, 3 months
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Re: change your mind [Re: DieCommie]
#7485340 - 10/04/07 03:06 PM (16 years, 3 months ago) |
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If you lend me $10 I now have $10, yet owe you $10, so I have a net value of 0$ if you say forget about the $10, then I have $10. What you said originally makes no sense to me. You don't gain 20$ by someone giving you 10 and saying forget about it.
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SneezingPenis
ACHOOOOOOOOO!!!!!111!

Registered: 01/15/05
Posts: 15,427
Last seen: 6 years, 8 months
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Re: change your mind [Re: krypto2000]
#7485484 - 10/04/07 03:57 PM (16 years, 3 months ago) |
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This is a mathematical story that makes it seem as if there's a glitch in math. There are 3 people who go into a hotel to stay the night. A hotel room costs 30 dollars, so each person pays 10 dollars so all 3 can share one room. After the people find their room, the hotel manager realizes that he's made a mistake. Rooms are actually 25 dollars instead of thirty. So the hotel manager calls in his bell waiter, and asks the bell waiter to take 5 dollars back up to the room, and split the 5 dollars evenly amongst the 3 people. As the bell waiter heads up to the room, he realizes that $5.00 can not be split evenly amongst 3 people, so instead he decides to give each man one dollar back, and keep 2 for himself. Now, all three people had ORIGINALLY payed $10.00, but because they each received one dollar back, each person only payed $9.00, plus the bell waiter had $2.00 in his pocket. 9 times 3 = 27, + the 2 in the bell waiter's pocket equals 29. Where's the remaining dollar?
its magic.
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lIllIIIllIlIIlIlIIllIllIIl
Stranger

Registered: 12/16/04
Posts: 11,123
Loc: Texas
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Quote:
YawningAnus said: This is a mathematical story that makes it seem as if there's a glitch in math. There are 3 people who go into a hotel to stay the night. A hotel room costs 30 dollars, so each person pays 10 dollars so all 3 can share one room. After the people find their room, the hotel manager realizes that he's made a mistake. Rooms are actually 25 dollars instead of thirty. So the hotel manager calls in his bell waiter, and asks the bell waiter to take 5 dollars back up to the room, and split the 5 dollars evenly amongst the 3 people. As the bell waiter heads up to the room, he realizes that $5.00 can not be split evenly amongst 3 people, so instead he decides to give each man one dollar back, and keep 2 for himself. Now, all three people had ORIGINALLY payed $10.00, but because they each received one dollar back, each person only payed $9.00, plus the bell waiter had $2.00 in his pocket. 9 times 3 = 27, + the 2 in the bell waiter's pocket equals 29. Where's the remaining dollar?
its magic.
No it's not a glitch in the math, I don't think.
The problem is people think it should add to $30, when actually the total should come to $25.
($3*9) -$2 = $27 -$2 = $25
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lIllIIIllIlIIlIlIIllIllIIl
Stranger

Registered: 12/16/04
Posts: 11,123
Loc: Texas
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Re: change your mind [Re: krypto2000]
#7485579 - 10/04/07 04:34 PM (16 years, 3 months ago) |
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Quote:
krypto2000 said: If you lend me $10 I now have $10, yet owe you $10, so I have a net value of 0$ if you say forget about the $10, then I have $10. What you said originally makes no sense to me. You don't gain 20$ by someone giving you 10 and saying forget about it.
Yeah I guess you're right.
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SneezingPenis
ACHOOOOOOOOO!!!!!111!

Registered: 01/15/05
Posts: 15,427
Last seen: 6 years, 8 months
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Quote:
adjust said:
Quote:
YawningAnus said: This is a mathematical story that makes it seem as if there's a glitch in math. There are 3 people who go into a hotel to stay the night. A hotel room costs 30 dollars, so each person pays 10 dollars so all 3 can share one room. After the people find their room, the hotel manager realizes that he's made a mistake. Rooms are actually 25 dollars instead of thirty. So the hotel manager calls in his bell waiter, and asks the bell waiter to take 5 dollars back up to the room, and split the 5 dollars evenly amongst the 3 people. As the bell waiter heads up to the room, he realizes that $5.00 can not be split evenly amongst 3 people, so instead he decides to give each man one dollar back, and keep 2 for himself. Now, all three people had ORIGINALLY payed $10.00, but because they each received one dollar back, each person only payed $9.00, plus the bell waiter had $2.00 in his pocket. 9 times 3 = 27, + the 2 in the bell waiter's pocket equals 29. Where's the remaining dollar?
its magic.
No it's not a glitch in the math, I don't think.
The problem is people think it should add to $30, when actually the total should come to $25.
($3*9) -$2 = $27 -$2 = $25
yeah, i know it isnt a mathematical fault... but I was kind of making a point about how you can walk people through math problems to dump them at an incorrect conclusion. shit.... I guess it doesnt really exclusively apply to math problems.
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DieCommie


Registered: 12/11/03
Posts: 29,258
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Heh, I debated many people on that math 'paradox'. Most of them dont believe my arguments and believe what they want to believe.
Your right though, it doesn't apply exclusively to mathematics. Many people are just gullible and don't like to think critically.
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