Darryl wants to add enough water to 8 gallons of a 10% bleach solution to make a 5% bleach solution. which equation can
he use to find the number of gallons of water he should add?
new
added
(gallons)
(gallons)
original
(gallons)
0.8
8
0.8
amount of bleach
amount of solution
1
х
8 + x
0 8
5
8+x-in
-1