Question 625277
 catron wants to make a cleaning solution that is 40% lysol. how many gallons of water must be added to 20 gallons of a solution that is 50% lysol to obtain the desired solution.???
.
Let x = amount (gallons) of water added
then
.50(20) = .40(20+x)
10 = 8+.40x
2 = .40x
2/.40 = x
5 gallons = x