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A man traveled from A to B at 40 miles per hour and then from B to A at 60 miles per hour what was his average speed during the entire journey?
the average speed is 50 because 60+ 40= 100 divided by 2 = 50 and remember add them up and divide by the number of numbers you have
What meaning of one thousandth of a meter?
"Millimeter".It means the distance that would need to be traveled 1,000 timesin order to move by an entire meter.
What is the average speed of a bus that travels on a level road for 3 hours at an avg speed of 20 mph faster than it traveled on a winding road for 4 hours and the entire trip was 305 miles?
We can't calculate that, unless you tell us how the distances on the two roads compared.They're probably equal, but you left out that information when you copied the problem.
Is speed that does not vary is called average speed?
No, speed can vary and one can still calculate the average speed of an entire trip. Average speed is equal to the change in distance divided by the change in time.
How do you calculate an overall average from a set of component averages?
I recommend you do not try to average a set of components, because your result may be not be accurate. The best way to find an overall average is to average the entire data set.EXAMPLE: You have three columns of ten numbers each with an average listed at the bottom of each, say A11, B11, and C11. There are two ways you can solve this:Combine all the averages and divide by 3. [=SUM(A11:C11)/3] - But, the result may not reflect the average of the entire data set.Calbulate the average for all 30 numbers in the data set. [=SUM(A1:C10)/30] - This would give a much more accurate representation of the entire data set.
