Mathematics, 15.02.2021 16:30 ctyrector

Lance arrives early at the airport (with flowers and balloons in hand) to welcome a friend. Her plane is delayed. While waiting, he notices that it takes 2 minutes 47 seconds to get down the hall on the moving sidewalk. While walking (not on the moving sidewalk), it took him 85 seconds. If he walks while on the sidewalk how long will it take him (s)?

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Lance arrives early at the airport (with flowers and balloons in hand) to welcome a friend. Her plan...

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