Answer:
8 ounces of 20%, 12 ounces of 70%
Step-by-step explanation:
8 ounces of 20%, 12 ounces of 70%
Step-by-step explanation:
Let 'x' be the number of ounces of 20% solution and 'y' be for the 70% solution. Since the the mix is 50% of 20 ounces then: x + y = 20
0.20x + 0.70y = 0.50(20)
From the 1st equation solve for x
x = 20 - y
Substitute it to the 2nd equation: 0.2(20-y) + 0.7y = 10, 4 - 0.2y + 0.7y = 10, 0.5y = 10-4, 0.5y = 6, y = 12
Substitute to x = 20 - y
x = 20 - 12
x = 8
