



 
Vivianne, If the bus maintains an average speed of 50 km/hr for the d kms from A to B it takes d/50 hours. If the bus maintains an average speed of 60 km/hr for the x kms from B to C it takes x/60 hours. This trip takes 3 hours so
Develop a similar equation when the average speed from A to B is 60 km/hr and the average speed from B to C is 50 km/hr. Remember to express the 8 minutes in hours. Solve the two equations for d and x. Penny  


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