A driver sets out on a journey. For the first half of the distance she drives at

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A driver sets out on a journey. For the first half of the distance she drives at the leisurely pace of 30 mi/h; she drives the second half at 60 mi/h. What is her average speed on this trip?

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Calculus Early Transcendentals

ISBN: 978-0538497909

7th edition

Authors: James Stewart

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Question Posted: Jun 19, 2010 01:14 AM

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A driver sets out on a journey. For the first half of the distance she drives at

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Let d be the distance traveled on each half of the trip Let t and to be the ti...View the full answer

Calculus Early Transcendentals

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