60 gallons of the whole thing, chlorine and water mixed.
one may note that 30 is half of 60, namely 50% of 60.
if there are 30 gallons of chlorine, 60 - 30, the leftover is 30 gallons, and that must be water.
so 50% is chlorine, and the other 50% is water.
I need $100 for my game console I want. I already have $40 and I get $10 every week for doing chores.
The slope between (5,1) and (2,-7) is 8 over 3