Problema Solution
A chemist needs 12 liters of a 40% alcohol solution. She must mix a 20% alcohol solution and a 50% alcohol solution to obtain what she needs. How many liters of each will be required to obtain what is needed?
Answer provided by our tutors
let
x = liters of the 20% alcohol solution
y = liters of the 50% alcohol solution
A chemist needs 12 liters of a 40% alcohol solution:
x + y = 12
0.20x + 0.50y = 0.40*12
by solving the system of equations we find:
x = 4 liters
y = 8 liters
click here to see the step by step solution of the system of equations:
4 liter of the 20% alcohol solution and 8 liters of the 50% alcohol solution are required.