SOLUTION: Susan drives 20 mph faster than her mother. In the same time Susan travels 180 miles, her mother travels 120 miles. Find their speeds.

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Susan drives 20 mph faster than her mother. In the same time Susan travels 180 miles, her mother travels 120 miles. Find their speeds.      Log On

              SPEED           TIME           DISTANCE
Susan         r+20            t               180
Mother        r               t               120