Bear Lake is 6 miles wide. The total time it took Jane to kayak back and forth across the lake was 2 hours. Her rate kayaking back was 3 times her rate going out across the lake. What was Jane's rate kayaking out across the lake?

Question

Bear Lake is 6 miles wide.  The total time it took Jane to kayak back and forth across the lake was 2 hours.  Her rate kayaking back was 3 times her rate going out across the lake.  What was Jane's rate kayaking out across the lake?

Anonymous · Answer

1 mph

Reiny · Answer

time = distance/rate let her rate on the first trip be x mph 6/x + 6/3x = 2 each term by 3x 18 + 6 = 6x x = 4 she went out at 4 mph, and came back at 12 mph (12 mph for 6 miles in a kayak???, Wow!!)

heli · Answer

molly traveled to the lake and back.It took two hours less time to get there then it did to get back.The average speed on the trip there was 50 mph.The average speed on the way back was 30 mph.How many hours didthe trip there take?