Chelsea ran 26km in 3 hrs and 15min. To the nearest hundredth, what was her average speed in meter per second?

Guest Jul 5, 2020

#1**0 **

Since there are 1000 m in a km, there are 1000 x 26 = 26 000 m in 26 km

Since there are 60 sec in a min, there are 60 x 15 = 900 sec in 15 min

Since there are 60 x 60 = 3600 sec in an hour, there are 3600 x 3 = 10 800 sec in 3 hr.

There will be 900 sec + 10 800 sec = 11 700 sec in 3 hr 15 min.

average speed = 26 000 m / 11 700 sec = 2.22 meters per second

geno3141 Jul 5, 2020