College Algebra in Context with Applications for the Managerial, Life, and Social Sciences 3rd Edition by Ronald J Harshbarger, Lisa Yocco

Question

Edition 3ISBN: 032157060X

Edition 3ISBN: 032157060X

Exercise 57

Step-by-step solution

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Step 1 of 2

Step 2 of 2

Answer 1

Let the amount of a 10% concentration be x and the amount of a 5% concentration be y.

The total amount of solution is the sum of x and y.

So,

The mixed solution is 8% of 20cc, that is.

The mixture is obtained by adding.

So,

Thus, the system of equations is