If Mark drives for 4 hours at 60 miles per hour and then drives another 5 hours at 80 miles per hour, what is his average speed, in miles per hour, for the trip?

Rangcr897 Jun 4, 2024

#1**+1 **

ez

4 hrs at 60 mph = 240 miles

5 hrs at 80 mph = 400 miles

240 + 400 = 640

4 + 5 = 9

his average speed is 640/9 mph(approx. 71.1 mph)

dplostthegame Jun 4, 2024

#1**+1 **

Best Answer

ez

4 hrs at 60 mph = 240 miles

5 hrs at 80 mph = 400 miles

240 + 400 = 640

4 + 5 = 9

his average speed is 640/9 mph(approx. 71.1 mph)

dplostthegame Jun 4, 2024