Respuesta :

sqdancefan

Answer:

  3520 ft/min

Step-by-step explanation:

40 mi/h = (40 mi/h)×(5280 ft/mi)×(1 h)/(60 min) = 3520 ft/min

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Each conversion factor has a value of 1 (numerator = denominator), so changes the units without changing the speed.