Question 842257
How much 15% acid is there?
I will assume that the total amount will be 50 ml which means your number of 116 ml is way to high.
x+y=50
.05(x)+.15*y=.08*50
x=35.,   y=15.
if we start out with 15 ml of 15% and add 35 ml of 5% then we will get 50 ml of 8%