Answer:
12 minutes
Step-by-step explanation:
The difference in distance started out being 1 mile. The difference in speeds is 5 mph, so that 1 mile will be covered in ...
time = distance/speed = 1 mi/(5 mi/h) = (1/5) h
The police will catch up in 1/5 hour, or 12 minutes.
8<-5x+20 is one possible answer. it depends on how they are writing it. you need to do the distributed property.
72
