In 2009, Usain Bolt set the world record for sprinting 100m in approximately 9 3/5 seconds. Find his average speed in meters per second.

The product of two negative rational numbers is always zero sometimes zero never zero

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance