Samantha needs to mix a 20 % alcohol solution with a 50 % alcohol solution to create 200 milliliters of a 20% solution. How many milliliters of each solution must Samantha use?

Answer 1

a represents the amount of 20%

200 - a represents the amount of 50%

0.20a + 0.50(220 - a) = 0.20(220)

Can you solve for a and answer? (It might suprise you1)