Translate the problem to a system of equations; then solve using the elimination method.In a chemistry class, 4 L of a 4%-silver iodide solution are mixed with a 10%-silver iodide solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 2.0 L
B. 3.0 L
C. 1.0 L
D. 4.0 L
Answer: A
Mathematics
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