A container holds 3,500 milliliters of milk, how many liters is this? Use the conversion ratio 1 liter equals 1,000 milliliters.

To convert milliliters to liters, you can use the conversion ratio that 1 liter equals 1,000 milliliters.

To convert 3,500 milliliters to liters, you divide the number of milliliters by 1,000:

\[
3,500 \, \text{milliliters} \div 1,000 = 3.5 \, \text{liters}
\]

Therefore, 3,500 milliliters of milk is equivalent to 3.5 liters.