SOLUTION: a total of 27000 was invested, part of it at 10% and part at 12%. the total yield was 2990. how much was invested at each rate?

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: a total of 27000 was invested, part of it at 10% and part at 12%. the total yield was 2990. how much was invested at each rate?      Log On