SOLUTION: One alloy contains 80 % gold (by weight) and another alloy contains 55 % gold. How many grams of each alloy should be combined to make 40 grams of an alloy that contains 70 % gold?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: One alloy contains 80 % gold (by weight) and another alloy contains 55 % gold. How many grams of each alloy should be combined to make 40 grams of an alloy that contains 70 % gold?      Log On