Question 1137852
0.80x + 0.10(47 - x) = 0.24(47)
0.80x + 4.7 - 0.10x = 11.28
0.70x = 6.58
x = 9.4
.
In order to get 47ml of a 24% formula you need 9.4 ml of the 80% and 47 - 9.4 = 37.6 of the 10% solution