Final answer:
A baby drinking 4 ounces of formula every four hours over three days requires approximately 2.13 liters of formula, after converting from ounces to liters using the conversion rate of 33.814 ounces per liter.
Step-by-step explanation:
The question involves calculating the total amount of formula a baby drinks over a period of three days. To solve this, we calculate the total number of feedings in three days and then convert that amount from ounces to liters.
There are 24 hours in a day, so in three days, there are 72 hours. If a baby drinks formula every four hours, then he or she would be fed 18 times (72 hours / 4 hours per feeding). Knowing that the baby drinks 4 ounces each time, we multiply the number of feedings by the amount per feeding to get a total of 72 ounces (18 feedings x 4 ounces).
Now we need to convert ounces to liters. There are 33.814 ounces in one liter. Therefore, we divide the total number of ounces by the number of ounces in one liter to find the total liters of formula needed for three days: 72 ounces / 33.814 ounces per liter equals approximately 2.13 liters.