SOLUTION: Tom Quig traveled 250 miles east of St. Louis. For most of the trip he averaged 60 ​mph, but for one period of time he was slowed to 20 mph due to a major accident. If the to

Algebra ->  Conversion and Units of Measurement -> SOLUTION: Tom Quig traveled 250 miles east of St. Louis. For most of the trip he averaged 60 ​mph, but for one period of time he was slowed to 20 mph due to a major accident. If the to      Log On


   

Question 1122619: Tom Quig traveled 250 miles east of St. Louis. For most of the trip he averaged 60 ​mph, but for one period of time he was slowed to 20 mph due to a major accident. If the total time of travel was 6 ​hours, how many miles did he drive at the reduced​ speed?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
               SPEED        TIME             DISTANCE
MOST             60        (250-d)/60        250-d
SLOW             20         d/20              d
Total                        6               250

The answer to the question is to solve the equation, %28250-d%29%2F60%2Bd%2F20=6.