bruce wants to make 50 ml of an alcohol solution with 12% concentration.he had 10% alcohol solutions and a 15% alcohol the equation. How much of each should he use
+37146 ingredients summed = final product
.10 * x ml + .15 (50ml - x) = .12 (50 ml) solve for x the amount of 10 %
.1x + + 7.5 - .15x = 6
- .05x = -1.5
x = 30 ml of 10%
50-30 = 20 ml of 15%
