SOLUTION: A teenager rollerblades for 10 km in 1 hour, 23 minutes and 20 seconds. At what average speed does he travel?

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Question 562010: A teenager rollerblades for 10 km in 1 hour, 23 minutes and 20 seconds. At what average speed does he travel?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+1+ hr x +60+ min/hr x +60+ sec/min = +3600+ sec
+23+ min x +60+ sec/min = +1380+ sec
+3600+%2B+1380+%2B+20+=+5000+
Average speed = +10+%2F+5000+ km/sec
Average speed = +.002+ km/sec x +1000+ m/km
Average speed = +2+ m/sec