Problema Solution
a chemist wished to make 3 liters of a 7% acid solution by mixing a 9% acid solution and a 4% acid solution. how many liters of each solution shoudl the chemist use?
Answer provided by our tutors
let
x = liters of the 9% solution
y = liters of the 4% solution
the new mix is 3 liters of 7% acid solution
x + y = 3
0.09x + 0.04y = 0.07*3
by solving the system of equations
x = 1.8 L
y = 1.2 L
click here to see the step by step solution of the system of equations
The chemist should use 1.8 liters of the 9% solution and 1.2 liters of the 4% solution.