Question 154253
.65x+.45(100-x)=100*.55
.65x+45-.45x=55
.10x=55-45
.10x=5
x=5/.10
x=50 liters of 65% is needed
100-50=50 liters of 45% is needed.
proof:
.65*50+45*50=100*55
32.5+22.5=55
55=55