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Pharmacy Math - Dilution Question

by Elmer
(Dallas, Texas)

How many mL of a 30% solution should be added to 60 mL of a 50% solution to obtain a 35% solution?

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Pharmacy Math - Dilution Question

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Jul 15, 2011
an equation for the answer
by: Anonymous

(x)(.30)+(60ml)(.50)=(x+60)(.35)
X=180ml

Jan 29, 2011
thanks
by: Kristen

Thanks Keith, the video helped me.

Jan 05, 2011
This would be the easier way to me
by: Anonymous

I would do tic-tac-toe always remember your higher dose goes in the top left corner lower dose goes in the lower left corner and your middle dose is placed in the middle of the grid.
50-35=15
30-35=5
reduce both to it's lowest term
which 5 would be 1 and 15 would be 3
then multiply your mL's which is 60ml x 3=180ml is your answer.

Jan 04, 2011
Solution
by: Keith

Here's the video with how to set this one up:

http://www.youtube.com/watch?v=z8FFXUKkH2w

Jan 03, 2011
answer
by: Anonymous

put the answer with the solution

Jan 03, 2011
The set-up and solution.
by: Keith

It's most easily solved as an Alligation setup, followed by proportions math. I'll try to stakeout some time to shoot a video or write a solution page for it.

Jan 03, 2011
I saw this one too!
by: Anonymous

Saw this problem on the facebook site also and I still don't understand how to set up this one. Is it an alligation or dilution?
Thank you!

Jan 02, 2011
what's the answer?
by: Anonymous

what's the answer?

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