Question

Calculate the average speed for a car that traveled a total of 115 kilometers, when in the first 60 minutes they traveled at 65 km and for 73 minutes they traveled 50 km.

Answer 1

See below

Step-by-step explanation:

Average speed = total distance / total time

= 115 km / ( 60 + 73 ) = .865 km / min

for km / hr : There are 60 min in an hour ...so divide the minutes by 60 :

115 / [( 60+73)/60 ] = 51.9 km/hr