Assignment:
A child in an airport is able to cover 270 meters in 3 minutes running at a speed down a moving sidewalk in the direction of the sidewalks motion. Running at the same speed in the direction opposite to the sidewalk's movement, the child is able to cover 256 meters in 4 mintues. What is the child's running speed and the she speed of the moving sidewalk?
Childs speed meters/minute
Side walk speed meters/minute
Provide complete and step by step solution for the question and show calculations and use formulas.