Question 236010
.70x+.10*60=.60(x+60)
.70x+6=.60x+36
.70x-.60x=36-6
.10x=30
x=30/.10
x=300 gal. of 70% anti freeze is used.
Proof;
.70*300+.10*60=.60*(300+60)
210+6=.60*360
216=216