Question 129259
45*.15+.35X=.25(45+X)
6.75+.35X=11.25+.25X
.35X-.25X=11.25-6.75
.1X=4.5
X=4.5/.1
X=45 ML OF 35% NEEDS TO BE ADDED.
PROOF:
45*.15+.35*45=.25(45+45)
6.75+15.75=.25*90
22.5=22.5