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Question: a ride to grandmas julie drives 100 km from her...

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A Ride to Grandma’s. Julie drives 100 km from her home to Grandmother’s house. On the way to Grandmother’s, Julie drives half the distance at 40.0 km/h and the other half at 60.0 km/h. On her return trip, she drives half the time at 40.0 km/h and half the time at 60.0 km/h. a) How long does the trip to Grandma’s take? What is her average speed for this trip? b) How long does the return trip take (from Grandma’s to Julie’s home)? What is her average speed for the return trip?

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