SOLUTION: I want to end up with 600ml of 50% solution. I'm starting out with one liquid with 40% of the solution and one liquid with 70%. How do I solve or set up the formula or equation to

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Question 97745: I want to end up with 600ml of 50% solution. I'm starting out with one liquid with 40% of the solution and one liquid with 70%. How do I solve or set up the formula or equation to get this answer. Thank You Ed Gearinger
Answer by ankor@dixie-net.com(12687) About Me  (Show Source):
You can put this solution on YOUR website!
I want to end up with 600ml of 50% solution. I'm starting out with one liquid with 40% of the solution and one liquid with 70%. How do I solve or set up the formula or equation to get this answer.
:
Let x = amt 40% solution
then
(600-x) = amt of 70% solution
:
The equation:
.4(x) + .7(600-x) = .5(600)