SOLUTION: On a trip to the mountains, Ms. Jacobs drove her car at an average rate of 50 km/hr. Due to the bad road conditions, the return trip took 3 hours longer, and she averaged only 30 k

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Question 977494: On a trip to the mountains, Ms. Jacobs drove her car at an average rate of 50 km/hr. Due to the bad road conditions, the return trip took 3 hours longer, and she averaged only 30 km/hr. Find out how much time she spent driving home.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
50t=30(t+3)
50t=30t+90
20t=90
2t=9
t=4.5
4.5+3=7.5 hours to return home