a skier moves 3.0 meters per second for 13 miles what is his time

Question

find the answer in scientific notation and significant figure

Answer 1

1 meter = 3.281 feet

1 mile = 5280 feet

 

                      5280 feet              1 meter           1 second

13 miles  * -------------------  * --------------  * --------------,    where the last ratio is the given speed per second

                     1 mile                    3.281 feet       3 meters

 

 

6973.483694... seconds

 

 

116.224 minutes

 

1.9371 hours

 

1 hour 56 min 13.5 seconds