An earthquake waves travels through 55 km of rock in 25 seconds. What is the constant of proportionality that represents shows the speed of the earthquake's wave?

d = (max distance / max time) t + 0.

Step-by-step explanation:

Earthquake travels 55km of rock in 25 seconds, the relationship between d, the distance traveled in km, and t, the time elapsed in seconds is:

d = (max distance / max time) t + 0

d = (55 km / 25 sec) * t

= 2.2t

2.2km/secs

Step-by-step explanation:

Speed = distance / time

= 55km/25secs

= 2.2km/secs