Asked by Anon
Sandra's canoeing rate in still water is 6 miles per hour. It takes Sandra 3 hours to travel 10 miles round trip. Assuming a constant rate of speed, determine the rate of the current.
Need steps of solving
Need steps of solving
Answers
Answered by
R_scott
[5 / (6 + c)] + [5 / (6 - c)] = 3
multiplying by [(6 + c)(6 - c)] ...30 - 5 c + 30 + 5 c = 108 - 3 c^2
20 = 36 - c^2 ... c^2 = 16
multiplying by [(6 + c)(6 - c)] ...30 - 5 c + 30 + 5 c = 108 - 3 c^2
20 = 36 - c^2 ... c^2 = 16
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