SOLUTION: Find the amount of twenty five percent acid solution and the amount of a fifteen percent acid solution that combine to prepare fifty oz at an eighteen percent acid solution.
Question 533457: Find the amount of twenty five percent acid solution and the amount of a fifteen percent acid solution that combine to prepare fifty oz at an eighteen percent acid solution. Found 2 solutions by scott8148, josmiceli:Answer by scott8148(6628) (Show Source):
You can put this solution on YOUR website! Let = ounces of 25% solution needed
Let = ounces of 15% solution needed
given: = ounces of acid in 25% solution = ounces of acid in 15% solution
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given:
(1)
(2)
-------------------------
(2)
(2)
(2)
(2)
Multiply both sides of (1) by , and
subtract (1) from (2)
(2)
(1)
and, since
(1)
(1)
(1)
15 ounces of 25% solution are needed
35 ounces of 15% solution are needed
check:
(2)
(2)
(2)
(2)
OK
