Question 270307
.16X+.07*6=.12(X+6)
.16X+.42=.12X+.72
.16X-12X=.72-.42
.04X=.30
X=.30/.04
X=7.5 ML OF 16% SOLUTION IS USED.
PROOF:
.16*7.5+.07*6=.12(7.5+6)
1.2+.42=.12*13.5
1.62=1.62