SOLUTION: If a car traveled for 3 hours at r mph and increased the speed by 10 mph and traveled for 1 more hour hour, how far did the car travel?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If a car traveled for 3 hours at r mph and increased the speed by 10 mph and traveled for 1 more hour hour, how far did the car travel?       Log On


   

Question 757034: If a car traveled for 3 hours at r mph and increased the speed by 10 mph and traveled for 1 more hour hour, how far did the car travel?
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
3 hours at r mph:
+d%5B1%5D=%28r%29%283%29
increased the speed by 10 mph and traveled for 1 more hour hour:
d%5B2%5D=%28r%2B10%29%281%29

total:

%0D%0Ad=d%5B1%5D%2Bd%5B2%5D=3r%2Br%2B10=4r%2B10%0D%0A