Determine what is her average speed on the return trip

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Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 34.0mph and half the distance at 71.0mph. On her return trip, she drives half the time at 34.0 mp hand half the time at 71.0mph. What is Julie's average speed on the way to Grandmother's house? Determine what is her average speed on the return trip?

Reference no: EM13677881

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