Problema Solution
A lab technician mixed 520ml solution of water and alcohol. If 3% of the solution is alcohol how many milliliters were used of alcohol and how many milliliters were used of water?
Answer provided by our tutors
let
a = ml of alcohol used
w = ml of water used
a + w = 520
1*a + 0*w = 0.03*520
by solving we find
a = 15.6 ml
w = 504.4 ml
click here to see the step by step solution of the system of equations
there were 15.6 ml of alcohol and 504.4 ml of water used.