Determine what is julies 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 43.0 and half the distance at 74.0. On her return trip, she drives half the time at 43.0 and half the time at 74.0. What is Julie's average speed on the way to Grandmother's house? What is her average speed on the return trip?

Reference no: EM13341810

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