Respuesta :

jushmk
Total distance traveled = 1,223 miles

For a speed of 460 mph and for 75 minutes, distance traveled = 460*75/60 = 575 miles

Distance remaining = 1223-575 = 648 miles

Time taken at 439 mph to cover this distance = 648/439 = 1.476 hours ≈ 88.56 minutes