One bottle contains 500  milliliters of juice. how many  liters of juice are there in 24 of these bottles?

There are 1000 milliliters in 1 liter. This makes the ratio 1000 mL to 1 L. 

If there are 500 milliliters of juice in one bottle, you can figure out how many liters are in one bottle of juice. 

500 milliliters is of a liter, since two times 500 is 1000 (equivalent to one liter). 

If there are 24 bottles of juice and one half liter in each of them:

x  = .

24 divided by 2 is twelve.

24 bottles of juice is 12 liters.