Respuesta :

306 / 68 = 4.5
answer: 4.5 hours
wolffiegirl

Convert the hours and an unknown number of minutes to a fraction. For example, 4 hours and 30 minutes = 4 hours + 30 minutes / 60 minutes/hr = 4.5 hours 

Distance = 68 mile/hr * 4.5 hr

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good job