Answer:
Joe drank 1.659 liters of water per day.
Explanation:
Given:
Number of servings recommended = 8
Number of servings Joe drank = 7
Amount of water in each servings = 237 mL
we need to find amount of waters in liters did Joe drank.
Solution:
Now we know that;
1 servings = 237 mL of water
7 servings = Amount of water in 7 servings.
Using Unitary method we get;
Amount of water in 7 servings =

Now we know that;
1000 mL = 1 liters
1659 mL = number of liters in 1659 mL
Again by using Unitary method we get;
number of liters in 1659 mL =

Hence Joe drank 1.659 liters of water per day.