Problema Solution

A15% solution is mixed with a 35% solution with the product 22 ounces in a 30% solution. How much of the 15% solution is needed

Answer provided by our tutors

let


x = ounces of the 15% solution

y = ounce of the 35% solution


x + y = 22


0.15x + 0.35y = 0.30*22


by solving the above system of equations we find


x = 5.5 oz


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5.5 ounces of the 15% solution is needed.