Write a system of two equations in two variables to solve each problem. Commemorative
Chapter 4, Problem 4.4.46(choose chapter or problem)
Write a system of two equations in two variables to solve each problem. Commemorative Coins. A foundry has been commissioned to make souvenir coins. The coins are to be made from an alloy that is 40% silver. The foundry has on hand two alloys, one with 50% silver content and one with a 25% silver content. How many kilograms of each alloy should be used to make 20 kilograms of the 40% silver alloy?
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