SOLUTION: Greg drove at a constant speed in a rainstorm for 210 miles. He took a break, and the rain stopped. He then drove 196 miles at a speed that was 7 miles per hour faster than his p

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Greg drove at a constant speed in a rainstorm for 210 miles. He took a break, and the rain stopped. He then drove 196 miles at a speed that was 7 miles per hour faster than his p      Log On

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Question 888566: Greg drove at a constant speed in a rainstorm for 210 miles. He took a break, and the rain stopped. He then drove 196 miles at a speed that was 7 miles per hour faster than his previous speed. If he drove for 9 hours, find the car's speed for each part of the trip?
The rate of the car in the rain was ?
The rate of the car without the rain was?

Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
r = speed in rainstorm
Key Uniform Rates equation RT=D rate time distance

________________speed_______time_________distance
rainstorm_______r____________210%2Fr___________210
no rain_________r+7__________196%2F%28r%2B7%29_________196
TOTAL_______________________9