at a small airport, 30 planes arrive per hour on the single runway, and these planes have to, on average, circle 2 minutes in the air before they can start their landing procedure. how many planes, on

at a small airport, 30 planes arrive per hour on the single runway, and these planes have to, on average, circle 2 minutes in the air before they can start their landing procedure. how many planes, on average, are circling in the air before they start landing?

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At a small airport, 30 planes arrive per hour on the single runway, and these planes have to, on average, circle 2 minutes in the air before they can start their landing procedu…

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