Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a 15% alcohol solution.

Which equation can Bruce use to determine how much of the 10% alcohol solution he should use?

0.10x + 0.15(50 – x) = 50 + 0.12
0.10x + 0.15(50 – x) = 0.12(50)
0.10x + 0.15(50 – x) = 50 + 0.12 + 0.12(50)
(0.10x)(0.15)(50 – x) = 0.12(50)

1 answer

0.10x + 0.15(50 – x) = 0.12(50)