SOLUTION: Please help me, I'm having trouble setting up the equation. I tried this equation & I'm getting a negative number. .3x + .15 x 10 = .4 How much of a 30% acid solution should b

Question 1100217: Please help me, I'm having trouble setting up the equation. I tried this equation & I'm getting a negative number. .3x + .15 x 10 = .4
How much of a 30% acid solution should be mixed with 10L of a 15% acid solution to obtain a 40% acid solution?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
How much of a 30% acid solution should be mixed with 10L of a 15% acid solution to obtain a 40% acid solution?
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40% is greater and 30% and 15%.
Mixing those will not give 40%.
think about it.
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