SOLUTION: How much of a 30% saline solution must be mixed with 30L of a 50%saline solution to produce a 35% saline solution?
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Question 445298: How much of a 30% saline solution must be mixed with 30L of a 50%saline solution to produce a 35% saline solution?
Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
.3x+.5*30=.35(x+30)
solve for x
x=90
check
.3*90+.5*30=.35(120)
27+15=42
ok
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