Question 279858: A 10% salt solution is mixed with an 18% salt solution to obtain a 32 oz 15% solution. How many ounces of each are needed? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = ounces of 10% solution needed
Let = ounces of 18% solution needed
given:
(1) ounces
(2)
(2)
-------------------
Multiply both sides of (2) by
(2)
Multiply both sides of (1) by
and subtract from (2)
(2)
(1)
and, since
12 ounces of 10% solution and 20 ounces of 18% solution are needed
check:
(2)
OK
