SOLUTION: how many liters of 40% solution has to be added to 10 leiters of 80% to make 60%?
I need linier equations with 2 viariables to solve
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I need linier equations with 2 viariables to solve
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Question 297117: how many liters of 40% solution has to be added to 10 leiters of 80% to make 60%?
I need linier equations with 2 viariables to solve Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = liters of 40% solution needed
Let = liters of 60% solution you end up with
given:
(1)
(2)
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from (2),
(2)
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and answers
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check answers:
and, since
(2)
(2)
OK
