SOLUTION: ten liters of 4% acid solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
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Question 246507: ten liters of 4% acid solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! .04*10+.10x=.06(10+x)
.4+.10x=.6+.06x
.10x-.06x=.6-.4
.04x=.2
x=.2/.04
x=5 liters of 10% solution is used.
Proof:
.04*10+.10*5=.06(10+5)
.4+.5=.06*15
.9=.9
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