crystal can ride her bike 10 km in 2.1 hours, what is her average velocity?
10/2.1 = 4.76 km per hour
To find Crystal's average velocity, we need to divide the total distance she traveled by the time it took her. In this case, she rode her bike for 10 km in 2.1 hours.
Average Velocity = Total Distance / Time Taken
Average Velocity = 10 km / 2.1 hours
To calculate this, we simply divide 10 km by 2.1 hours, which gives us approximately 4.76 km/h.
Therefore, Crystal's average velocity is approximately 4.76 km/h.