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05-27-2009, 09:51 AM
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#1 | | what manner of phaggotry is this
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| Math brain fart help
i've been out of school for too long and im having a brain fart here
an example:
if a total is $155 including 5% tax, what is the sub total without tax? i cant remember the formula.
edit: cleared up the question
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Last edited by RRxtar; 05-27-2009 at 10:14 AM.
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05-27-2009, 10:01 AM
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#2 | | My AFC gave me an ABS CEL code of LOL while at WOT!
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its 155 x .05 = 7.75 + 155
162.75
or are you asking how much without tax? you can pretty much do it backwards itll be a bit off, i dont know the exact formula. so like around $148.50-$149
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05-27-2009, 10:02 AM
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#3 | | ninja edits your posts without your knowledge
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$155x.95% (of total)= $147.25
This is wrong.... ughhh let me think about this.
147.62 would be your answer.
Since 147.62 x .05 = 7.381
7.381 + 147.62 = 155.001
Which is pretty much as close as it is going to get.
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05-27-2009, 10:02 AM
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#4 | | ninja edits your posts without your knowledge
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| Quote:
Originally Posted by billboa  its 155 x .05 = 7.75 + 155
162.75 | It was already included. He is looking to before the taxes were added on as he said it was "included with 5%".
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05-27-2009, 10:04 AM
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#5 | | Banned (ABWS)
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155 x (100% - 5%) = ??
i think that's it
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05-27-2009, 10:12 AM
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#6 | | what manner of phaggotry is this
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we are going the oposite way here. trying to figure out how much without tax. so you cant simply subtract the % from the total
155*5%=7.75
155-7.75 = 147.25
but 147.25+5% does not equal 155
i figured it out the equasion but i suck at working it thru
X + (X * 0.05) = 155
edit: once i remembered that y is, infact, a number, and put a 1 infront of it, it was easy. god ive been out of school for too long!
1y+0.05y=155
1.05y=155
y=155/1.05
y= 147.6190476 or 147.62
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05-27-2009, 10:12 AM
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#7 | | The RS Freebie guru
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$155 / 1.05 = $147.62
$147.62 * 1.05 = $155
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05-27-2009, 10:14 AM
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#8 | | 14 dolla balla aint got nothing on me!
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^ what he said
x + 0.05x = 155
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05-27-2009, 01:51 PM
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#9 | | Need to Seek Professional Help
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LOL math is definitely not revscenes domain
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05-27-2009, 02:18 PM
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#10 | | RS.net, where our google ads make absolutely no sense!
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| Quote:
Originally Posted by RRxtar 1y+0.05y=155
1.05y=155
y=155/1.05
y= 147.6190476 or 147.62 | the right answer... 155 is INCORRECT
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05-27-2009, 02:25 PM
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#11 | | I answer every Emotion with an emoticon
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x times 1.05 = 155
155/1.05 = 147.62
Check
147.62 x 1.05 = 155.001
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How I wish I can remain ignorant, why do I know so much?
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05-27-2009, 02:37 PM
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#12 | | Willing to sell body for a few minutes on RS
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How many more times will people post the solution - when it has been posted already?! 
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05-27-2009, 02:50 PM
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#13 | | My homepage has been set to RS
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| Quote:
Originally Posted by Gumby How many more times will people post the solution - when it has been posted already?! | Here it is again for good measure
$155/1.05 = answer
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05-27-2009, 02:54 PM
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#14 | | I answer every Emotion with an emoticon
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Originally Posted by Gumby How many more times will people post the solution - when it has been posted already?! | Diu, we all want to look smart ar ma
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Ignorance is bliss
How I wish I can remain ignorant, why do I know so much?
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05-27-2009, 04:27 PM
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#15 | | I contribute to threads in the offtopic forum
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The lack of mathematical ability here never fails to amaze.  | |
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05-27-2009, 08:47 PM
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#16 | | Banned By Establishment
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omg, we're all retarded hahha...
then again, i've never used anything over math 9 in real life.
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05-27-2009, 08:58 PM
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#17 | | degenerate extraordinaire
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"Hi there, math... not my forte, but THAT is" *points down*
__________________ Quote: Originally posted by 97ITR
He would step out of his freshly downtown autospa detailed 996 C4s, check out his own reflection in the driverside window out of habit, take off his brand new limited edition D&G aviator sunglasses so the mf can see the fury in his eyes, sashay over to the other guy and then threaten to insert his black leather Savatore Ferragamo loafers into the guys rear-end. |
Last edited by Ikkaku; 05-28-2009 at 08:32 AM.
Reason: accuracy
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05-27-2009, 10:42 PM
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#18 | | Rs has made me the man i am today!
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included for great justice
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05-28-2009, 02:44 AM
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#19 | | My homepage has been set to RS
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Remember the fireman jingle and the Jared jingle? I avoided Subway just because of those commercials.
Oh yea..
x * 1.05 = $155
x = $155/1.05
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05-28-2009, 11:47 AM
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#20 | | RS.net, helping ugly ppl have sex since 2001
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this thread is funny. it just made my day!
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05-28-2009, 12:02 PM
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#21 | | I am Hook'd on RS
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155 / 1.05 = 147.62
147.62 x 1.05 = 155.00
Thats it!
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05-28-2009, 12:24 PM
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#22 | | Willing to sell a family member for a few minutes on RS
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I hate math
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05-28-2009, 01:26 PM
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#23 | | I *Fwap* *Fwap* *Fwap* to RS
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| http://www37.wolframalpha.com/input/...s+1.05+%3D+155
I win; Also, this site is incredible if you have ANY math related questions, havn't really played around with it for anything else. It's like Google for equations.
Also, I feel sorry for the OP because that's really really really fucking basic math....I don't really understand how you could forget that O_o
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05-28-2009, 02:12 PM
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#24 | | My homepage has been set to RS
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lol @ how long it took for an answer
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05-28-2009, 02:24 PM
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#25 | | RS controls my life!
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you guys are ridiculous especially op, it just a reverse question.
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