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.

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Question 1046739: Susan drives 20 mph faster than her mother. In the same time Susan travels 180 miles, her mother travels 120 miles. Find their speeds.
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
              SPEED           TIME           DISTANCE
Susan         r+20            t               180
Mother        r               t               120


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