please very soon full explanation.  A truck driver recently drove a truckload of Kingsville tomatoes to Yellowknife, a trip that took him a total of 60  hours .  He was able to drive at a speed of 110km/hr for 15 hours; a speed of 90km for 30 hours; a speed of 60km/hr for 5 hours; a speed of 40km/hr for 2 hours; and, a speed of 0km/hr for the 8 hours in which he rested.  Including the time in which he rested, what was his average speed per hr?

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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please very soon full explanation.  A truck driver recently drove a truckload of Kingsville tomatoes to Yellowknife, a trip that took him a total of 60  hours .  He was able to drive at a speed of 110km/hr for 15 hours; a speed of 90km for 30 hours; a speed of 60km/hr for 5 hours; a speed of 40km/hr for 2 hours; and, a speed of 0km/hr for the 8 hours in which he rested.  Including the time in which he rested, what was his average speed per hr?  

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