Write a system of two equations in two variables to solve each problem. Antifreeze. How
Chapter 4, Problem 38(choose chapter or problem)
Write a system of two equations in two variables to solve each problem. Antifreeze. How much of a 40% antifreeze solution must a mechanic mix with a 70% antifreeze solution if she needs 20 gallons of a 50% antifreeze solution?
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