The velocity of a car was read from its speedometer at 10-second intervals and recorded in the table. Use the Midpoint Rule to estimate the distance traveled by the car. (Use the Midpoint Rule with 5 subintervals. Round your answer to one decimal place.) mi t(s) 0 10 20 30 40 50 v(mi/h) t(s) v(mi/h) 0 60 56 34 52 56 55 51 70 80 55 50 90 47 100 45

Q: The variable s is proportional to t, and s = 15 when t = 105.Determine t when s = 40.

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A: It is given as the table which help us the calculation easily.

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