A 6% Alcohol Solution Is to Be Mixed with a 3

Multiple Choice

A 6% alcohol solution is to be mixed with a 3% alcohol solution to make 20 liters of a 4.5% alcohol solution. If x represents the number of liters of 6% alcohol solution, which of the following equations would find the number of liters of 6% alcohol solution?

A) $0.06 x + 0.03 ( 20 - x ) = 0.045 ( 20 )$
B) $0.06 x + 0.03 ( x - 20 ) = 0.045 ( 20 )$
C) $0.06 x + 0.03 ( x - 20 ) = 0.045$
D) $0.06 x + 0.03 ( x + 20 ) = 0.045$