Answer:
the dependent variable is the one that changes because the independent variable was changed. The dependent isn't intentionally manipulated
Explanation:
100. A centimeter is a 100th of a meter.
Speed = 8000m/20min = 400m/min
Convert meters/min to meters/second.
60seconds in 1minute:
400m/60sec = 6.67m/s
Speed is: 6.67m/s