OpenStax, Algebra and Trigonometry 2e §11.1 Systems of Linear Equations: Two Variables · Exercise 73 · Algebra · Systems
Systems of Linear Equations: Two Variables · Exercise 73
Use a system of linear equations with two variables and two equations to solve.
If a scientist mixed 10% saline solution with 60% saline solution to get 25 gallons of 40% saline solution, how many gallons of 10% and 60% solutions were mixed?
OpenStax, Algebra and Trigonometry 2e · §11.1 Systems of Linear Equations: Two Variables · Exercise 73
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