Question 455082: How many gallons of a 60% salt solution must be mixed with 30 gallons of a 13% solution to obtain a solution that is 50% salt? Found 2 solutions by amoresroy, josmiceli:Answer by amoresroy(361) (Show Source):
You can put this solution on YOUR website! Let x = the no. gallons of a 60% salt solution that must be mixed with 30 gallons of a 13% solution to obtain a solution that is 50% salt
.6x + 30(.13) = .5(30 + x)
.6x + 3.9 = 15 + .5x
.1x = 11.1
x = 111
111 gallons of a 60% salt solution that must be mixed with 30 gallons of a 13% solution to obtain a solution that is 50% salt.
You can put this solution on YOUR website! Let = gallons of 60% solution needed
given: = gallons of salt in 60% solution = gallons of salt in 60% solution
111 gallons of 60% solution are needed
check answer:
OK
