SOLUTION: Suppose that a pharmacist has a supply of a 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be mixed to produce 60 quarts that is 50% alcohol?
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: Suppose that a pharmacist has a supply of a 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be mixed to produce 60 quarts that is 50% alcohol?
Log On
Question 503347: Suppose that a pharmacist has a supply of a 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be mixed to produce 60 quarts that is 50% alcohol?
thank you Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! ---------percent ---------percent ---------------- quantity
Alcohol I 30 ---------------- x quarts
Alcohol II 70 ---------------- 60 - x quarts
Mixture 50.00% ---------------- 60
30 x + 70 ( 60 - x ) = 50 * 60
30x+4200-70x=3000
30x-70x =3000 -4200
-40 x = -1200
/ -40
x = 30 quarts 30.00% Alcohol I
30 quarts 70.00% Alcohol II
