A dog sled race is 25 miles long. The equation 5/8 k=25 can be used to estimate the race's length k in kilometers. Approximately how many hours will it take a dog sled team to finish the race if it travels at an average speed of 30 kilometers?

The distance to be covered in the race is 25 miles

average speed of the team is 30 km/h

30 km/m in miles/hour will be:

1 mile=0.621371 km

thus

30 km/h = (30*0.621371) miles/hour

=18.64113 miles/hour

time taken to complete 25 miles will be:

time=distance/speed

=25/18.64113

=1.3411 hours