For the distances given, find the average speed for the whole trip. Recall that average speed = distance/time. The distances given are for a one-way trip. Express your answers in whole number or decimal form. Distance Average Speed 20 mi mph 60 mi mph 120 mi mph 480 mi mph Make a conjecture as to what the average speed is in general. The average speed in general is mph.
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Suppose that you drive a certain distance at 30 miles per hour, then turn around and drive back the same distance at 50 miles per hour. For the given distance, find the average speed for the whole trip. Recall that the average speed is equal to distance divided by time. The distances given are for a one-way trip. Express your answer in whole number or decimal form. Distance / Average speed 20 miles __ mph 60 miles __ mph 120 miles __ mph 480 miles __ mph Make a conjecture as to what the average speed is in general. The average speed is ___ mph.
Joanna Q.
Suppose that you drive a certain distance at 20 miles per hour, then turn around and drive back the same distance at 60 miles per hour. Choose at least four different distances and find the average speed for the whole trip. Then use inductive reasoning to make a conjecture as to what the average speed is in general. Remember distance = speed times time. (Hint: Only use decimals if it terminates. If you get a repeating decimal, keep it as a fraction.)
Donna D.
Use the formula Time traveled $=\frac{\text { Distance traveled }}{\text { Average velocity }}$ A passenger train can travel 240 miles in the same amount of time it takes a freight train to travel 160 miles. If the average velocity of the freight train is 20 miles per hour slower than the average velocity of the passenger train, find the average velocity of each.
Prerequisites: Fundamental Concepts of Algebra
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