Tanisha needs 200 mL of a 48% concentration acid solution. She has 60% and 40% concentration solutions in her lab. How many mL of 40% acid solution should be mixed with 60% acid solution in order to make the required amount of 48% acid solution?
How would you solve this using matrices?

Question

Tanisha needs 200 mL of a 48% concentration acid solution. She has 60% and 40% concentration solutions in her lab. How many mL of 40% acid solution should be mixed with 60% acid solution in order to make the required amount of 48% acid solution?
How would you solve this using matrices?

anonymous · Answer

http://www.algebra.com/algebra/homework/Matrices-and-determiminant/Matrices-and-determiminant.faq.question.256527.html

anonymous · Answer

...That doesn't help. At all. I don't even know what they're trying to say...  @m@

anonymous · Answer

That has NOTHING to do with how we learned matrices! >M< 
Sorry, this isn't really your fault, I'm just annoyed...