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Mathematics, 17.07.2020 07:01 shaylawaldo11

Robbi rides her bicycle uphill for three miles at 8 mph. She then rides on level ground for seven miles at 14 mph. She continues downhill for twelve miles at 24 mph. What is her average speed in miles per hour for the entire trip?

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Robbi rides her bicycle uphill for three miles at 8 mph. She then rides on level ground for seven mi...
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