# Determine concentration

How would I go about solving a problem that goes roughly as such?

Solution A: .1%
Solution B: .15%


How many milliliters of each A & B are required to create 260 milliliters of a solution, C, that is .14%?

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1. $x+y = 260$
2. $0.1x+0.15y = (0.14)(260)$