RATIONAL EXPRESSIONS AND EQUATION

5. Kaitlyn frequently drives 189 km to visit her friends in Canmore, Alberta. She noticed that she saves 20 minutes if she travels 24 km/h faster than her average speed. What was Kaitlyn's average speed, to the nearest km/h? 189 . 20kem /he 20 min 24 kim / he 185 6. Another event at Super Challenge Day is the Lawnmower Derby. Team members try to mow a standard size lawn as quickly as possible. Owen and Jason can mow the lawn in 18 minutes. If it takes Owen 30 minutes to mow a lawn alone, how long does it take Jason to mow the lawn alone? 2 18 7. Hans Airlines has a fleet of airplanes whose average speed is 4 times the average speed of the Derailer passenger train. A Derailer train requires 12 hours more than a Hans airplane to travel a distance of 2000 km. Find the speed of the Derailer train and the airplane. 4 x aisp =