OpenStax, Elementary Algebra 2e §5.6 Graphing Systems of Linear Inequalities · Exercise 132 · Algebra · Systems
Graphing Systems of Linear Inequalities · Exercise 132
Translate to a system of equations and solve.
A pharmacist needs 20 liters of a 2% saline solution. He has a 1% and a 5% solution available. How many liters of the 1% and how many liters of the 5% solutions should she mix to make the 2% solution?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Elementary Algebra 2e · §5.6 Graphing Systems of Linear Inequalities · Exercise 132
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