Average speed of cyclist = x
average speed of car = 3x
x = 225/5
x = 45km/h
3x = 3(45)
3x = 135km/h
average speed of cyclist = 45km/h
average speed of car = 135km/h
72:80
9:10
Divide 72 and 80 by 8 to simplify it and get the ratio
Use the app desmos it should give you the answer I hope this helps !
