SOLUTION: A driver leaves on a road trip at 8:00am. The function v(t) is the speed he is traveling t hours after the start of the trip. What value of t should be used so that v(t) will repre

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Question 397717: A driver leaves on a road trip at 8:00am. The function v(t) is the speed he is traveling t hours after the start of the trip. What value of t should be used so that v(t) will represent the driver's speed at 9:40 am? (three decimal places)
Found 2 solutions by nerdybill, richard1234:
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
You forgot to include the expression for v(t)

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
At 9:40, t = 1 hour 40 minutes = 5/3 hours, so use t = 5/3 or 1.667.