Respuesta :

choixongdong
unit rate = 822.6 / 18 = 45.7

answer
unit rate = 45.7 km per hour
altavistard
Find the unit rate by dividing 822.6 km by 18 hours:

822.6 km
-------------- = 45.7 km/hr
 18 hrs

Note:  this is approx         45.7 km/hr        0.625 mile
                                         --------------- * ----------------- = 28.6 mph 
                                                 1                   1 km