Asked by Sienna
7) Brenda drove to the ferry office and back.
It took one hour longer to go there than it did to come back. The average speed on the trip there was 60 km/h. The average speed on the way back was 80 km/h. How many hours did the trip there take?
It took one hour longer to go there than it did to come back. The average speed on the trip there was 60 km/h. The average speed on the way back was 80 km/h. How many hours did the trip there take?
Answers
Answered by
oobleck
since distance = speed * time,
60t = 80(t-1)
now solve for t
60t = 80(t-1)
now solve for t
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