Ascale model of a city has scale of 1 cm : 4.5 km. two buildings in the model are 1.9 cm apart. to the nearest tenth of a kilometer, what is the actual distance between the buildings in the city?

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m