You need 375 mL of a 75% alcohol solution...

Question

You need 375 mL of a 75% alcohol solution. On hand, you have a 5% alcohol mixture and a 80% alcohol mixture. How much of each mixture will you need to obtain the desired solution?

You will need

 ______ mL of the 5% solution

and

______ mL of the 80% solution.

Answer 1

Solve the system of equations:

75%375 = 5%x + 80%y

x + y = 375