- The time to get somewhere is distance divided by velocity.

- Example: Albuquerque is 300 miles away, and you travel at 100 mph...how long does it take to get there?

- Rearranging v = H x d to get d/v:

- We also need to get the right units: H is in km/s/Mpc...we need to know how many km are in a Mpc to just get seconds.