SOLUTION: What quantity x of a 75% acid solution must be mixed with a 25% solution to produce 500 ml of a 55% solution? I have tried these equations .75x+.25(.55*500)=500(.55)

Question 124264: What quantity x of a 75% acid solution must be mixed with a 25% solution to produce 500 ml of a 55% solution?
I have tried these equations
.75x+.25(.55*500)=500(.55)

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
You are close, but since the final solution is 500 ml and the first quantity is x ml, then the second quantity is ml

So the equation should be

Multiply

Distribute

Combine like terms

Subtract 125 from both sides

Divide both sides by 0.50 to isolate x

So you need 300 ml of the 75% solution
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