Problema Solution
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 35% salt and Solution B is 85% salt. She wants to obtain 130 ounces of a mixture that is 40% salt. How many ounces of each solution should she use?
Answer provided by our tutors
et a = #oz. of solution A
Then 35-a = # oz. solution B. Then
0.35a +0.85(60-a) = 0.40*130,
0.35a -.85a+60.85=52
-0.50a = -8.5
a = 17oz. of solution A, and 113oz. of solution B.