As of the first one, you could say that a person drove 130 in 2 hours, therefore if you want to find the speed at which the person drove (mph/miles per hour) you divide both numbers with the number of hours traveled.

calculation:

__130/2__

2/2

That draws you to the conclusion that the person was driving at a speed of 65mph (miles per hour).

As of the second, you could say that you paid $48 for 4 lbs of flour for example. If you then want to know the price of 1 lbs of flour you would have to divide both numbers by the amount of flour you paid $48 for.

calculation:

__48/4__

4/4

This tells you that 1 lbs of flour cost $12.

I hope this was helpful, let me know if I misunderstood the question. :)