Respuesta :

Answer: 14.4 h

The speed is : [tex]v=\frac{d}{t} =\frac{252}{13} =19.46[/tex] [tex]miles/h\\[/tex]

The time it takes to travel 279 miles :

[tex]t'=\frac{d}{v} =\frac{279}{19.46} =14.4 hours[/tex]