Answer :
Answer:
37.86 mph and 40.86 mph
Step-by-step explanation:
The speed for the first session is x, for the second session will be x+3
Average speed= (x+x+3)/2= x+1.5
Total distance covered will be 228+205=433 miles
Time= 11 hours
Time= Distance/ speed
Speed= distance/time
Average Speed= 433/11
x+1.5=433/11
x+1.5=39.36363636
x=39.36363636 -1.5= 37.86363636
Approximately, x= 37.86 mph
x+3=37.86+3= 40.86 mph