SOLUTION: How many gallons of a 30% acid solution must be mixed with 80 gallons of a 19%solution to obtain a solution that is 20% acid?
I need answer by 5/21/12 please. :)
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I need answer by 5/21/12 please. :)
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Question 613428: How many gallons of a 30% acid solution must be mixed with 80 gallons of a 19%solution to obtain a solution that is 20% acid?
I need answer by 5/21/12 please. :) Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! How many gallons of a 30% acid solution must be mixed with 80 gallons of a 19%solution to obtain a solution that is 20% acid?
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let x=gallons of 30% acid to be mixed
80+x=gallons of 20% mixed solution
..
30%x+19%*80=20%(80+x)
.3x+15.2=16+.2x
0.1x=.8
x=8
ans:
gallons of 30% acid to be mixed=8
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