SOLUTION: In a downhill ski race, Margo posted a time of 2 minutes and 24 seconds for a course 2.1 miles long. How many miles per hour did she average for the race?

Algebra ->  Conversion and Units of Measurement -> SOLUTION: In a downhill ski race, Margo posted a time of 2 minutes and 24 seconds for a course 2.1 miles long. How many miles per hour did she average for the race?      Log On


   



Question 501723: In a downhill ski race, Margo posted a time of 2 minutes and 24 seconds for a course 2.1 miles long. How many miles per hour did she average for the race?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
In a downhill ski race, Margo posted a time of 2 minutes and 24 seconds for a course 2.1 miles long. How many miles per hour ?
:
Change 2 min 24 sec to 144 sec
:
144%2F2.1 = 68.57 sec/mi
:
Convert to mph (3600 sec in 1 hr)
3600%2F68.57 = 52.5 mph