The water level of a lake decreases by 6 inches over 3 years. What is the mean yearly change in the water level?
-6in/3yr = -2 in/year
To find the mean yearly change in the water level, you need to calculate the average change in inches per year.
First, divide the total change in the water level by the number of years:
6 inches / 3 years = 2 inches/year
Therefore, the mean yearly change in the water level is 2 inches.
To find the mean yearly change in the water level, you need to divide the total change in the water level by the number of years.
In this case, the water level decreases by 6 inches over 3 years. To find the mean yearly change, divide the total change of 6 inches by the number of years, which is 3.
Mean yearly change = Total change / Number of years
Mean yearly change = 6 inches / 3 years
Mean yearly change = 2 inches per year
Therefore, the mean yearly change in the water level is 2 inches.