Problema Solution
A lab technician mixed a 540 ml solution of water and alcohol. If 3% of the solution is alcohol, how many milliliters of alcohol were used, and how many milliliters of water were used?
Answer provided by our tutors
let
a = ml of the 100% alcohol used
w = ml of water used (0% alcohol)
A lab technician mixed a 540 ml solution of water and alcohol and 3% of the solution is alcohol
a + w = 540
1*a + 0*w = 0.03*540
by solving the above system of equations we find
a = 16.2 ml alcohol
w = 523.8 ml water
click here to see the step by step solution of the system of equations
16.2 ml of alcohol and 523.8 ml of water were used.