SOLUTION: you and your college roommate travel to your respective hometowns in the same amount of time. you drive 210 miles and and your drives 190 miles. your friends average speed is 6 m

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Question 144290This question is from textbook
: you and your college roommate travel to your respective hometowns in the same amount of time. you drive 210 miles and and your drives 190 miles. your friends average speed is 6 mph lower than your. what are your average speed and your friends? This question is from textbook

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
210/x=190/(x-6)
190x=210x-1260
190x-210x=-1260
-20x=1260
x=-1260/20
x=63 mph is your speed.
63-6=57 mph is your classmate's speed.
proof:
210/63=190/57
3.33333=3.33333