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Un article trouvé pour ce sujet.
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Distance, time and rate |
2008-09-11 |
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Pauline pose la question :
During the first part of a trip, a canoeist travels 100 miles at a certain speed. The canoeist travels 25 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 5 hrs. What was the speed on each part of the trip?
Penny Nom lui répond. |
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