Question 735595
.80X+.30(8-X)=.50*8
.80X+.24-.30X=4
.50X=40-.24
.50X=.16
X=.16/.5
X=3.2 LITERS ANS. FOR THE 80% SOLUTION IS USED.
PROOF:
.80*3.2+.30(8-3.2)=.50*8
2.56+.30*4.8=4
2.56+1.44=4
4=4