SOLUTION: a druggist has an 18% solution of argyol. How much of this solution and how much water must be mixed together to make 10 liters of a 12% solution?

Question 689444: a druggist has an 18% solution of argyol. How much of this solution and how much water must be mixed together to make 10 liters of a 12% solution?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a druggist has an 18% solution of argyol. How much of this solution and how much water must be mixed together to make 10 liters of a 12% solution?
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Equation:
water + water = water
0.82x + 1*(10-x) = 0.88*10
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Multiply thru by 100 to get:
82x + 100*10 - 100x = 88*10
-18x = -12*10
x = 6 2/3 liters (amt of water needed)
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Cheers,
Stan H.
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