heston: Please help solve Linear Algebra question gonzales is a chemist. he needs 10 liters of 40% hcl solution he discovers he is out of 40% hcl solution and does not have time to reorder. he discovers that on his shelf he has 25% and 50% hcl solution to make 10 liters of 40% hcl solution. how many liters of the 25% sol and 50% solution should he mix
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