(Answered) A whale swims due east for a distance of 80 km in a time of

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A whale swims due east for a distance of 8.0 km in a time of 2.50 h. It then turns around and moves west for 2.0 km in a time of 0.50 h. It turns around again and heads 4.0 km due east in a time of 1.00 h.

What is the total distance travelled by the whale.

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