Mathematics, 29.08.2019 01:00 jailenevazquez755
Suppose a lab needs to make 400 liters of a 39% acid solution, but the only solutions available to the lab are 20% acid and 50% acid. what system of equations can be used to find the number of liters of each solution that should be mixed to make the 39% solution? let c represent the number of liters of 20% acid solution and let d represent the number of liters of 50% acid solution.
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Suppose a lab needs to make 400 liters of a 39% acid solution, but the only solutions available to t...
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