SOLUTION: A chemist needs 6 liters of a 10​%
alcohol solution but has only a
15​% alcohol solution. How many liters each of the
15​% solution and water should he mix
Algebra.Com
Question 1040218: A chemist needs 6 liters of a 10%
alcohol solution but has only a
15% alcohol solution. How many liters each of the
15% solution and water should he mix to make the desired
6 liters of 10%
solution?
The chemist needs to mix
___ liters of
15% alcohol solution with
___ liters of water.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of 15% solution needed
Let = liters of water needed
-------------------------------
(1)
(2)
---------------------------
By substitution:
(2)
(2)
(2)
and
(1)
(1)
(1)
----------------
4 liters of 15% solution are needed
2 liters of water are needed
-------------------------
check:
(2)
(2)
(2)
OK
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