Answer:
Thanks very much ^^
Step-by-step explanation:
Step-by-step explanation:
speed = distance/time
time = t = distance/speed
t = 180/b + (400-180)/c = 180/b + 220/c = 20(9/b + 11/c)
57/6 = 1/x
57 = 6x
x = 0.11 miles per minute
Answer : 59%
Step-by-step explanation: