SOLUTION: Mrs. G thinks she finally may have found a medicine which will remove the blackness from her teeth. But first she has to mix a liquid containing 4% reactor fuel with a liquid cont

Question 1158384: Mrs. G thinks she finally may have found a medicine which will remove the blackness from her teeth. But first she has to mix a liquid containing 4% reactor fuel with a liquid containing 20% reactor fuel to create a 6 ounce liquid containing 8% reactor fuel. How many ounces of the 4% liquid must she use. Round your answer to the nearest one decimal place (tenths).
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
want 6 oz 0.08 fuel=0.48 fuel-oz
have x os .04 fuel=.04x fuel-oz
and 6-x oz .20 fuel=1.20-.20x fuel-oz
so .04x+1.20-.20x=0.48
-.16x=-.72
x=4.5 oz of 4%
6-x=1.5 oz of 20%
4.5 ounces of 4% ANSWER

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