SOLUTION: solution A is 20% alcohol, and solution B is 70% alcohol. how much of each is needed to make 50 liters of a solution that is 60% alcohol?

Algebra ->  Expressions-with-variables -> SOLUTION: solution A is 20% alcohol, and solution B is 70% alcohol. how much of each is needed to make 50 liters of a solution that is 60% alcohol?      Log On


   

Question 720593: solution A is 20% alcohol, and solution B is 70% alcohol. how much of each is needed to make 50 liters of a solution that is 60% alcohol?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
ASSIGN VARIABLES
L=20 %
H=70 %
T=60 %
M=50 Liters
u = UNKNOWN
v = UNKNOWN
u and v are how much of solutions at L and H to use

FIND EQUATIONS TO FIT THE SITUATION
highlight%28%28Lu%2BHv%29%2FM=T%29 and highlight%28u%2Bv=M%29
Solve for u and v.