12
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8:00 am to 11:14 am = 3 hours 14 minutes 8:00 am to 11:14 pm = 15 hours 14 minutes
11
The average of a sequence of numbers is equal to Average(x1, ... , xi) = Sum(n, i = 1)[xi]/n Example: Find the average of 5, 6, 8, 12, 15, and 29. Average = Sum[5, 6, 8, 12, 15, 29]/6 Average = (5+6+8+12+15+29)/6 Average = 11
7/8 ÷ 11/16 = 7/8 × 16/11 = 14/11 = 1 3/11
115/10 = 11.5