Carlos adds 100 mL of 80-degree water to 100 mL of 40-degree water. Predict the final temperature of the water when they are mixed.
A: 40 Degrees
B: 120 Degrees
C: 20 Degrees
D: 60 Degrees
100 (80-T) = 100 (T-40)
2 T =120
T= 60
halfway between 40 and 80