Question: Valerie is taking a road trip over spring break. At 4 : 3 0 p . m . she looks down at her speedometer and

Valerie is taking a road trip over spring break. At 4:30 p.m. she looks down at her speedometer and notices that she is going 45 mph. Ten minutes later she looks down at the speedometer again and notices that she is going 55 mph. When was she moving exactly 5050 mph?

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