Sometimes you can compute an average speed easily, and sometimes not. Solve this problem using the formula for average speed, and then decide if it makes sense to average the two given speeds, or if that does not work. You drive for 3 hour(s) at 40 mph, and for 3 hour(s) at 80 mph.
What is your true average speed?
Is this the same as the simple average of the two speeds?
Sometimes you can compute an average speed easily, and sometimes not. Solve this problem using the formula for average speed, and then decide if it makes sense to average the two given speeds or if that does not work.
You drive for 2 hour(s) at 30 mph, and for 5 hour(s) at 80 mph.
What is your true average speed?
Is this the same as the simple average of the two speeds?
Sometimes you can compute an average speed easily, and sometimes not. Solve this problem using the formula for average speed, and then decide if it makes sense to average the two given speeds or if that does not work.
You drive for 10 miles at 50 mph, and for 10 miles at 80 mph.
What is your true average speed?
Is this the same as the simple average of the two speeds