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I_was_the_walrus
eggshells



Registered: 05/01/02
Posts: 11,887
Loc: next door
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I need some quick math help...
#14419039 - 05/08/11 11:08 AM (12 years, 8 months ago) |
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Yeah I know. Its been awhile. I was just thinking to myself, and Im kinda confused. So, say theres a $15,000 car. I know 20% off would be to multiply it by .80 = 12,000.
But, say you didnt know the original price. You had 12,000 and knew it was discounted by 20%. How would you get to 15,000?
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deCypher



Registered: 02/10/08
Posts: 56,232
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You'd set up an algebraic equation. Let x be the original price; then you know that x * .8 = 12000. Solve for x, and you get x = 12000 / .8 = 15000.
-------------------- We are all in the gutter, but some of us are looking at the stars.
 
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Then you introduce a variable say x=original price. So then .8x=12,000 or in other words x=12,000/.8 or 120,000/8=x=15,000.
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Re: I need some quick math help... [Re: deCypher]
#14419059 - 05/08/11 11:12 AM (12 years, 8 months ago) |
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Quote:
deCypher said: You'd set up an algebraic equation. Let x be the original price; then you know that x * .8 = 12000. Solve for x, and you get x = 12000 / .8 = 15000.
I hate you.
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deCypher



Registered: 02/10/08
Posts: 56,232
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-------------------- We are all in the gutter, but some of us are looking at the stars.
 
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Re: I need some quick math help... [Re: deCypher] 1
#14419073 - 05/08/11 11:15 AM (12 years, 8 months ago) |
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Its sexy to think we were both working on that problem at the exact same time.
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I_was_the_walrus
eggshells



Registered: 05/01/02
Posts: 11,887
Loc: next door
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Re: I need some quick math help... [Re: deCypher]
#14419076 - 05/08/11 11:16 AM (12 years, 8 months ago) |
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Quote:
deCypher said: You'd set up an algebraic equation. Let x be the original price; then you know that x * .8 = 12000. Solve for x, and you get x = 12000 / .8 = 15000.

I dont smoke often and Im soooo baked. Ive been thinking about this shit for like an hour. You da man.
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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No credit for me
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Mello Kitty
Beautiful Burnout



Registered: 12/04/08
Posts: 8,556
Loc: Sanriotown, Harmonyland
Last seen: 7 years, 5 months
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im a math R-
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Re: I need some quick math help... [Re: Mello Kitty]
#14419085 - 05/08/11 11:17 AM (12 years, 8 months ago) |
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I wouldn't be proud of that
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Mello Kitty
Beautiful Burnout



Registered: 12/04/08
Posts: 8,556
Loc: Sanriotown, Harmonyland
Last seen: 7 years, 5 months
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im not. but it is what it is. but i admire people with "Math-Brains"
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Re: I need some quick math help... [Re: Mello Kitty] 1
#14419105 - 05/08/11 11:23 AM (12 years, 8 months ago) |
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Quote:
ellenallien said: im not. but it is what it is. but i admire people with "Math-Brains" 
It is what it is only because your too lazy to change it.
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Mello Kitty
Beautiful Burnout



Registered: 12/04/08
Posts: 8,556
Loc: Sanriotown, Harmonyland
Last seen: 7 years, 5 months
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K
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Re: I need some quick math help... [Re: Mello Kitty] 1
#14419110 - 05/08/11 11:25 AM (12 years, 8 months ago) |
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Typical proud ignorant response.
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Mello Kitty
Beautiful Burnout



Registered: 12/04/08
Posts: 8,556
Loc: Sanriotown, Harmonyland
Last seen: 7 years, 5 months
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Re: I need some quick math help... [Re: Mello Kitty]
#14419115 - 05/08/11 11:25 AM (12 years, 8 months ago) |
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Quote:
ellenallien said: K 
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roombird
mescaline



Registered: 01/18/11
Posts: 932
Last seen: 6 years, 9 months
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Quote:
learningtofly said: Typical proud ignorant response. 
wow never had instant hate for someone online till now you damn sig to 
-------------------- Good people drink good beer-Hunter S. Thompson
WE Are the Music Makers and WE Are the Dreamers of Dreams no one truly goes insane; for we all are already. normality to us, is insanity to society.
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Re: I need some quick math help... [Re: roombird]
#14419159 - 05/08/11 11:33 AM (12 years, 8 months ago) |
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Its called tough love dude.
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I_was_the_walrus
eggshells



Registered: 05/01/02
Posts: 11,887
Loc: next door
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Re: I need some quick math help... [Re: Mello Kitty]
#14419162 - 05/08/11 11:33 AM (12 years, 8 months ago) |
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Im no wiz either. I havent been to school in 2 years, so for registration I had to take some placement exams. Somehow, I did pretty well and got into math 1010, which is college level credit
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Mello Kitty
Beautiful Burnout



Registered: 12/04/08
Posts: 8,556
Loc: Sanriotown, Harmonyland
Last seen: 7 years, 5 months
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Quote:
learningtofly said: Its called tough love dude.
its called trollzing. i dont mind. im crankey today too
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learningtofly
Ancient Aliens



Registered: 05/21/07
Posts: 15,105
Loc: Out of this world
Last seen: 12 years, 5 months
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Nice man, I hope you enjoy it and become wiser!
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