Answer:
13
Step-by-step explanation:
12^2 + 5^2 = c^2
144 + 25 = c^2
169 = c^2
13 = c
I think the answer maybe 9t+5x
Answer:
20 greater than or equal to 4x + 7
Step-by-step explanation:
hope this helps!
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
