TheFang

This is only an example, so I am not cheating off you.
How do you figure that?
Using one of the books examples:
A chemist needs to mix 20L of a 40% acid solution with some 70% acid solution to obtain a mixture that is 50% acid. How many liters of the 70% acid solution should be used?
did you use the equation:
0.70x + 0.40(20) = 0.50(x+20)
?
Anyhow after working this out you get the answer of 10.

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psionandy

Did someone just turn the lights off? oh well, back on at last

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kcallahan

Originally Posted by TheFang

This is only an example, so I am not cheating off you. How do you figure that? Using one of the books examples: A chemist needs to mix 20L of a 40% acid solution with some 70% acid solution to obtain a mixture that is 50% acid. How many liters of the 70% acid solution should be used? did you use the equation: 0.70x + 0.40(20) = 0.50(x+20) ? Anyhow after working this out you get the answer of 10.

You're sure working my brain on a Friday afternoon. In you first example I just calculated the ratio to be 3:1 to get the 14%.

For the example above I calculated the ratio to be 2:1 Since you had 20L of 40% you'd need 10L of 70%.

@ last

Zaniax

Think I got the wrong thread - at last ®

:p

hstn

Feeling off by about, say 28 %, Z?

kcallahan

Just helping Fangy with his homework. :)

And, getting ready to leave work. :approve:

TTUL

@ last

wdement

quit arguing and go read my rant thread and have pity on me

@last

psionandy

ahhh.... whats up Wendy (apart from those idiots who couldn't manage to sell you a Nintendo)?

And how's Commander-Awesome doing?

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TheFang

Thanks kc!
Done wendy. Sorry about all that. Tell DD happy birthday for me!!

__________________
The greatest tragedy is not death, but life without a purpose.


He has had my back since I was born.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

It only hurt once, from beginning to end.

Peace means having a bigger stick then the other guy.

Loosing may do little to your credibility, but quitting will destroy it.

wdement

Originally Posted by psionandy

ahhh.... whats up Wendy (apart from those idiots who couldn't manage to sell you a Nintendo)? And how's Commander-Awesome doing?

I'm in the doc's office now strapped to a machine listening to her heartbeat :love:

psionandy

:love: boom :love: boom :love: boom :love: boo

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Zaniax

Nice one, andy - at least ®

:approve:

Pedah

nice enough @last

nonentity

Going by another thread I have had warning that I am soon to be turned into sweet and sour chicken so this could be my last post...

Hopefully the patron saint of cats, St. Santa of Claws, will descend to save me in the nick of time.

@ last

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Zaniax

Chicken ? :scratch_h
What cat-egory are you - at least ® ?

:p