Respuesta :

355 km /7 hrs = x km/ 8.5 hrs

using cross products

355 * 8.5 = 7*x

divide by 7

355*8.5/7 =x

355/7 * 85/10

30175/70

431 5/70

x = 431 1/14 miles

RELAXING NOICE
Relax