Suppose that a nurse needs 15 cc (cubic centimeters) of a 15.5% solution (that is, a solution that is 15.5% ingredient) of a certain medication, which must be obtained by mixing
cc of a 20% solution and
cc of a 5% solution. Express the total amount of the ingredient in the mixture in terms of
.
A) 
B) 
C) 
D) 
E) 
Correct Answer:
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