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Un article trouvé pour ce sujet.
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Mr. Byrd's drive to work |
2002-03-22 |
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Mr. Bollen pose la question :
Mr. Byrd leaves his house at 7:00am to go to work. If he drives 40 mph he will arrive 3 minutes late and if he drives 60mph he arrives 3 minutes early. At what speed will Mr. Byrd have to drive in order arrive exactly on time. Please describe how you arrived at your answer.
Claude Tardif and Penny Nom lui répond. |
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