SOLUTION: Dr. Jekyll needs 12 liters of a 40% solution to become Mr. Hyde.
He must mix a 20% solution and a 50% solution. How many liters of
each will be required to obtain what he needs?
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-> SOLUTION: Dr. Jekyll needs 12 liters of a 40% solution to become Mr. Hyde.
He must mix a 20% solution and a 50% solution. How many liters of
each will be required to obtain what he needs?
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Question 1104555: Dr. Jekyll needs 12 liters of a 40% solution to become Mr. Hyde.
He must mix a 20% solution and a 50% solution. How many liters of
each will be required to obtain what he needs? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = liters of 20% solution needed
Let = liters of 50% solution needed
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(1)
(2)
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(2)
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
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(2)
(1)
------------------------
and
(1)
(1)
-----------------------------------
4 liters of 20% solution are needed
8 liters of 50% solution are needed
------------------------------------
check:
(2)
(2)
(2)
(2)
(2)
OK
