Multiple Choice
A 1500-liter tank contains 70 liters of a 30% acid solution and you add x liters of a 70% acid solution to the tank. If the function C, which represents the proportion of acid to the total solution in the final mixture, is given by , what percent does the concentration of acid appear to be approaching as x increases without bound? (Ignore the physical constraint that
.)
A) 100%
B) 30%
C) 40%
D) 70%
E) 20%
Correct Answer:

Verified
Correct Answer:
Verified
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