[RRxtar]

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

[billboa]

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

[CRS]

$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.

[CRS]

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%".

[liu13]

155 x (100% - 5%) = ??

i think that's it

[RRxtar]

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

[InvisibleSoul]

$155 / 1.05 = $147.62
$147.62 * 1.05 = $155

[ChaKo]

^ what he said

x + 0.05x = 155

[m!chael]

LOL math is definitely not revscenes domain

[fobulaus]

1y+0.05y=155
1.05y=155
y=155/1.05
y= 147.6190476 or 147.62

the right answer... 155 is INCORRECT

[q0192837465]

x times 1.05 = 155

155/1.05 = 147.62

Check

147.62 x 1.05 = 155.001

[Gumby]

How many more times will people post the solution - when it has been posted already?! :p

[Teriyaki]

How many more times will people post the solution - when it has been posted already?! :p

Here it is again for good measure

$155/1.05 = answer

[q0192837465]

How many more times will people post the solution - when it has been posted already?! :p

Diu, we all want to look smart ar ma

[slammer111]

The lack of mathematical ability here never fails to amaze. :lol

[Shun Izaki]

omg, we're all retarded hahha...

then again, i've never used anything over math 9 in real life.

[Ikkaku]

"Hi there, math... not my forte, but THAT is" *points down*

[woob]

http://cache.gawker.com/assets/images/jalopnik/2009/02/2010_Kia_Forte.jpg

included for great justice

[goo3]

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

[shenmecar]

this thread is funny. it just made my day!

[TRDCeli]

155 / 1.05 = 147.62
147.62 x 1.05 = 155.00

Thats it!

[hotjoint]

I hate math

[_Hotsauce_]

http://www37.wolframalpha.com/input/?i=X+times+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

[drunkrussian]

lol @ how long it took for an answer

[RenoMan]

you guys are ridiculous especially op, it just a reverse question.

[Teriyaki]

http://cache.gawker.com/assets/images/jalopnik/2009/02/2010_Kia_Forte.jpg

included for great justice

Is math your forte? or is THAT your forte!?