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a passenger plane made a trip to Las Vegas and back on the trip there it flew 432 miles per hour and on the return trip it would 480 miles per hour how long did the trip there take if the return trip took nine hours

Respuesta :

calculate total distance
distance = speed * time
= 480 * 9
=4320MILES
therefore trip to Las Vegas
time = distance/ speed
=4320/ 432
= 10hours

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