Answer: Each candle cost $6.25.
Step-by-step explanation:
37.75 = 12.75 + 4x
-12.75
25 = 4x
/4
6.25 = x
Acceleration = (change in speed) / (time for the change)
change in speed = (20-120)= -100 m/s.
1.5 min = 90 sec
acceleration = -100/90 = -1.11 m/s^2.
We don't care about the 150kg or the 2,500 meters. They don't make any difference.
Your answer will come out to -3