21. remember mr. bean riding his motor scooter and lawn mower? assume hill-billie bean is on his lawnmower
at his house. 1 kilometer away is biker bean riding his motor scooter towards hill-billie bean to play chicken.
assume the lawnmower is traveling at 5 km/hour, and the scooter is traveling at 15 km/h.

a. identify the two variables to be used and what they represent.

b. create an equation that represents the distance traveled by hill-billie bean (assume the starting point is his
house).

c. create an equation that represents the distance traveled by biker bean. hint: the motor scooter is getting
closer to the house, so this affects the rate of change.

d. how much time will pass until they run into each other?

e.how far will the lawnmower travel?