SOLUTION: Carl makes a 100-ml solution that is 22% blue dye from a 10% blue dye solution and a 40% blue dye solution. how much of the 10% solution was use?

Question 454687: Carl makes a 100-ml solution that is 22% blue dye from a 10% blue dye solution and a 40% blue dye solution. how much of the 10% solution was use?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Carl makes a 100-ml solution that is 22% blue dye from a 10% blue dye solution and a 40% blue dye solution. how much of the 10% solution was used?
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Equation:
dye + dye = dye
0.10x + 0.40(100-x) = 0.22*100
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Multiply thru by 100 to get:
10x + 40*100 - 40x = 22*100
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-30x = -18*100
x = 60-ml (amt of 10% solution needed
100-x = 40-ml (amt of 40% solution needed
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Cheers,
Stan H.
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