SOLUTION: The rule for distance travelled d km over a given time for t hours for a moving vehicle is given by d=50+80t. What is the speed of the vehicle?

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Question 1038902: The rule for distance travelled d km over a given time for t hours for a moving vehicle is given by d=50+80t.
What is the speed of the vehicle?
Answer by ikleyn(52848) About Me  (Show Source):