SOLUTION: A 20% concentrate is to be mixed with a mixture having a concentration of 60% to obtain 80 liters of a mixture with a concentration of 30%. How much of the 20% concentrate and the
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Question 909062: A 20% concentrate is to be mixed with a mixture having a concentration of 60% to obtain 80 liters of a mixture with a concentration of 30%. How much of the 20% concentrate and the 60% concentrate will be needed? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = liters of 20% mixture needed = liters of the concentrate in 20% mixture
Let = liters of 60% mixture needed = liters of the concentrate in 60% mixture
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(1)
(2)
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(2)
(2)
(2)
Subtract (1) from (2)
(2)
(1)
and
(1)
(1)
(1)
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60 liters of 20% mixture is needed
20 liters of 60% mixture is needed
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check:
(2)
(2)
(2)
(2)
(2)
OK
