SOLUTION: How many ounces of a 20% alcohol solution must be mixed with 5 ounces of a 50% alcohol solution to get a mixture that is 30% alcohol? I have my first equation set up as 20% + 50

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Question 89664: How many ounces of a 20% alcohol solution must be mixed with 5 ounces of a 50% alcohol solution to get a mixture that is 30% alcohol?
I have my first equation set up as 20% + 50% =30%
I then get confused and need help please.

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
you have the concentrations but not the amounts

switch to decimals and try .2(x)+.5(5)=.3(x+5)