Suppose that a nurse needs 10 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. Choose the expression for the amount of ingredient in the 5% solution.

Question

Suppose that a nurse needs 10 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. Choose the expression for the amount of ingredient in the 5% solution.

Quizplus · Accepted Answer

Let X be the amount of ingredient in the 5% solution.
Then the total amount of ingredient in the final solution is 0.05X + 0.20(11 - X) = 0.155(11).
Simplifying and solving for X, we get X = 4.4.
Therefore, the amount of ingredient in the 5% solution is 4.4/11 = 0.4 or 11eb0d3b_9771_2c10_9790_57365be35046_TB1243_11.

Suppose That a Nurse Needs 10 Cc (Cubic Centimeters) of a 15.5