SOLUTION: The cooling system of a certain foreign-made car has a capacity of 15 liters. If the system is filled with a mixture that is 40% antifreeze, how much of this mixture should be drai

Question 1208969: The cooling system of a certain foreign-made car has a capacity of 15 liters. If the system is filled with a mixture that is 40% antifreeze, how much of this mixture should be drained and replaced by pure antifreeze so that the system is filled with a solution that is 60% antifreeze?

Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52776) (Show Source): You can put this solution on YOUR website!
.

It was solved at this forum many years ago under this link

https://www.algebra.com/algebra/homework/word/mixtures/Mixture_Word_Problems.faq.question.146154.html

https://www.algebra.com/algebra/homework/word/mixtures/Mixture_Word_Problems.faq.question.146154.html

Enjoy (!)

Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
typical drain-and-replace example.
https://www.algebra.com/my/drain-and-replace-antifreeze.lesson?content_action=show_dev

v, amount volume to remove and to be replaced
Volume of total capacity for cooling system same before as after, 15 liters

Solve for v.

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