SOLUTION: Travel Rate: A semi truck travels on a paved road for 2 hours at an average speed of 20 miles per hour faster than it travels on a dirt road. the time spent on the dirt is 3 hours.
Question 401188: Travel Rate: A semi truck travels on a paved road for 2 hours at an average speed of 20 miles per hour faster than it travels on a dirt road. the time spent on the dirt is 3 hours. if the entire trip is 200 miles, how fast is the truck traveling on the dirt road? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Travel Rate: A semi truck travels on a paved road for 2 hours at an average speed of 20 miles per hour faster than it travels on a dirt road. the time spent on the dirt is 3 hours. if the entire trip is 200 miles, how fast is the truck traveling on the dirt road?s
let x=speed of truck on dirt road
then x+20=speed of truck on paved road
distance=time of travel*speed
2(x+20)+3x=200
2x+40+3x=200
5x=160
x=32
ans: speed of truck traveling on dirt roads = 32 miles per hour
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