An airplane leaves orlando, fl and travels 540 miles to washington d. c. the flight takes 90 minutes. what is the speed of the plane?

Speed is measured in miles per hour. You have miles, so convert minutes to hours.

90 minutes x 1 hour / 60 minutes = 1.5 hours

540 miles/ 1.5 hours = 360 miles / hour

Hope I helped, even though this isn't Chemistry :)

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