Answer:
the cyclists rode at 35 mph
Step-by-step explanation:
Assuming that the cyclists stopped, and accelerated instantaneously at the same speed than before but in opposite direction , then
distance= speed*time
since the cyclists and the train reaches the end of the tunnel at the same time and denoting L as the length of the tunnel :
time = distance covered by cyclists / speed of cyclists = distance covered by train / speed of the train
thus denoting v as the speed of the cyclists :
7/8*L / v = L / 40 mph
v = 7/8 * 40 mph = 35 mph
v= 35 mph
thus the cyclists rode at 35 mph
It would be 91°. Angles M and R correspond to each other.
C=8πab
Divide both sides by 8πb
c/(8πb) = a
Answer:The mean would be equal to 12.57
The difference would be 10
The other would be 12
Step-by-step explanation:
2 and 11/100. I think that's as simple as it gets in a mixed number form
