Asked by Vinnnie

A druggist mixes a 10% solution of iodine with a 15% solution of iodine. How much of each solution should be used in order to obtain 20 cubic centimeters of a 12% solution?

Answers

Answered by drwls
Another algebra problem in two variables. Why are you changing names?

Please show your work for further assistance.
Answered by Vinnie
I'm not changing names. This is the only one that I posted today. Because this is the only one out of my homework that I don't understand how to do.
Answered by drwls
Let X = cc of 10% iodine solution
Let Y = cc of 15% iodine solution

X + Y = 20
(0.1X + 0.15 Y) = 0.12*20

X + 1.5 Y = 24
0.5Y = 4

Take it from there.
Answered by Vinnie
Thanx :)
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