Final answer:
To find the average yearly snowfall, divide the total snowfall by the number of years. In this case, over a 3 1/2 year period, 27 1/2 inches of snow fell. Therefore, the average yearly snowfall is 7 6/7 inches.
Step-by-step explanation:
To find the average yearly snowfall, we need to divide the total snowfall by the number of years. To find the average yearly snowfall, divide the total snowfall by the number of years. In this case, over a 3 1/2 year period, 27 1/2 inches of snow fell. Therefore, the average yearly snowfall is 7 6/7 inches.
In this case, over a 3 1/2 year period, 27 1/2 inches of snow fell. To calculate the average yearly snowfall, we divide 27 1/2 by 3 1/2. First, we convert 3 1/2 to an improper fraction. This is done by multiplying the whole number (3) by the denominator (2) and adding the numerator (1). So, 3 1/2 is equivalent to 7/2.
Now we can divide 27 1/2 by 7/2. We do this by multiplying 27 1/2 by the reciprocal of 7/2, which is 2/7. Multiplying 27 1/2 by 2/7 gives us 55/7. Therefore, the average yearly snowfall is 7 6/7 inches.