Giai phuong trinh vi phan dang phan li xy'=y-1

1000 Meters per Kilometer and 1 Hour per 60 Minute

Step-by-step explanation:

In the given question, we have to convert 4 km per min into meters per hour.

We know that:

There are 1000 meters in a kilometer, therefore we multiply it by 1000.

Also, there are 60 minutes in an hour. Therefore, to convert minutes into hour we divide it by 60.

This can be written as :

Thus,

Thus, from the options mention below we can use the transformations:

1000 Meters per Kilometer and 1 Hour per 60 Minute.

Although, the other two transformation can be used as well and mean the same. But it is appropriate to use these.