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Algebraically retarded

DeebaserDeebaser on my way to work in a suit and a tieAhhhh...come on fucking guyRegistered User regular
edited March 2010 in Help / Advice Forum
Good morning H/A,


I have these values that have been discounted 35% of x and I need to find x. I haven't had my coffee yet and just thought of this approach in the shower. It's a good approach, but every way I look at the actual math in the fog of morning, I just can't crack it.

plz halp.

Deebaser on

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    FuzzywhaleFuzzywhale Registered User regular
    edited March 2010
    bad math was here
    see below.

    Fuzzywhale on
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    milehighmilehigh Registered User regular
    edited March 2010
    The way I'm reading it is that you've got some value (let's say 65) that's been discounted 35% and you want to know the original value (basically a problem like "You go to the store and see a lol on sale for $65, it's been marked down 35% of the original price, what was the original price?")

    Maybe? If that's the case you're going to take your discounted value (which is actually equal to 65% of the original price, since it's discounted by 35%) and divide it by that percentage, so 65/.65 says that original cost (x) is $100.

    This would look like values=.65x, where your values are already discounted by 35%.

    Not sure if that's what you were looking for, hopefully it helped some.

    Edited for bad grammar. It's a math thread, but that's no excuse

    milehigh on
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    FunkyWaltDoggFunkyWaltDogg Columbia, SCRegistered User regular
    edited March 2010
    Yep. One simple way to think of it is that to apply a 35% discount you multiply the original cost x by (100% - 35%), so to undo that you reverse the operation.

    x * (1 - .35) = <your value>

    x = <your value> / (1 - .35)

    FunkyWaltDogg on
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    DeebaserDeebaser on my way to work in a suit and a tie Ahhhh...come on fucking guyRegistered User regular
    edited March 2010
    That is exactly it, Funky!
    Thank you very much everyone. I should probably be ashamed of myself.

    Please lock.

    Deebaser on
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