May I borrow your mind? E-Liquid Math

[frosting]

I made an oops. I gotta ask because I'm just terrible at just about any shape or form of math. Got a juice at 6ml 20PG/80VG. So, I've bought a juice that should be here tomorrow at 15ml 100% PG to combine with the oops. I have about 4.5/5 ml left of the original oops.

When I combine these what will the new PG/VG formula be?

Right now my estimation is about 30-35% VG. So what would you say It's going to be?

Thanks for the help!

 

[erich]

If it's 5ml left at 20%, that's 1ml of PG.
Add the 15ml and that's 16ml of PG.

There will be 20ml total, 16 of which are PG.

16/20 = .8 so 80% PG

 

[frosting]

*tries to wrap my head around erich's math and starts hurting self* you know what, i'm not going to think about it too much but it makes sense so thank you

 

[erich]

If a train leaves the station travelling at 80mph...

Just kidding. np.

 

[Pamdane]

Ok, here is an easier way I used when teaching percentages.
5ml of 20%
+5ml of 100%
____________
10 ml of 60%
How= 20% + 100% each gives half of itself. So half of 20 is 10, half of 100 is 50....10 + 50 =60.

Now you have:
10ml of 60%
+10ml of 100% (what you didnt use the first time)
_____________
20ml +(half of each) 30+50=80%

That might be easier. I hope....

 

[frosting]

Thanks Pam. My mind though, wants to add the percentages together. 20% + 100% = 120%... I just suck at math lol Even with the explanation it just... Good thing I'm not going to college yet. At least not until I can pay for it in cash.

 

[Pamdane]

OK, so if you want to add the 20 to the 100, here is another way it will work:

Do the amount as one answer, and percents as another.

5 + 15 =20ml
But your also trying to find percentages.
Look at both numbers. 5 will go into each.
There is 1 five in 5, and 3 fives in 15.
so its a total of 4 parts.
you have one part 20%, and three parts at 100%
add them up and you have 320. BUT you have 4 parts in all. the first 5, and the three 5's in 15.
So you have to divide the total percentage(320) by the parts that went into it(4).
320/4=80
Is that any better?

 

[erich]

Neat, but coincidental. This only holds true because 4/5 = 80%.

 

[Pamdane]

Yep. Percentages. Ratios are inverse percentages.

 

[cozzicon]

The answer is 42

 

[erich]

Yeah, nm. I suppose I was supposing that you were proposing a different proposal.

 

[jtpjc]

The answer is 42

Only when you've asked a question that was badly formulated. Well, as long as you have a towel, you'll be alright.

 

[AttyPops]

Post #2 made sense.

Wrapping head now. Space Taxi !!!!!!!!!!!

Try looking for an e-jucie calculator... let the computer do the math if it makes your head hurt.

 

[r77r7r]

eJuice Recipe Calculator

easy calc^^

Payroll Software BREAKTRU SOFTWARE Shareware Freeware Business Family Payroll Withholding

better calc^^

 

[Dagar]

my brain is cramping already.

 

[r77r7r]

my brain is cramping already.

This is a very helpful forum- if you post what you bought and tell folks what you want to achieve- thery'll probably be someone to show up and walk you thru it.

 

[r77r7r]

DIY for newbies:

http://www.e-cigarette-forum.com/forum/tutorials/225827-diyin-juice-newbies.html

 

[classwife]

Moved to DIY E-Liquid