275,973 views
45 votes
45 votes
The amounts below show the change (measured in feet) in water

level over four months. What is the average monthly change in
water level?
-2.54, -3.16, -2.82, 1.6

User Tengr
by
2.4k points

2 Answers

22 votes
22 votes

Final answer:

The average monthly change in water level is calculated by adding together the monthly water level changes and dividing by the number of months, resulting in an average monthly change of -1.73 feet.

Step-by-step explanation:

To calculate the average monthly change in water level from the given data, we first add up all the changes in water level and then divide by the number of months. The provided water level changes over four months are -2.54, -3.16, -2.82, and 1.6 feet.

First, we find the total change in water level by adding these four numbers:

Total change = (-2.54) + (-3.16) + (-2.82) + 1.6

Total change = -6.92 feet

Next, to find the average monthly change, we divide the total change by the number of months, which is 4:

Average monthly change = Total change ÷ Number of months

Average monthly change = (-6.92 feet) ÷ 4

Average monthly change = -1.73 feet

Thus, the average monthly change in water level is -1.73 feet.

User Armin Hierstetter
by
2.8k points
20 votes
20 votes

Answer: -1.73 ft

Step-by-step explanation:

(-2.54 - 3.16 - 2.82 + 1.6) / 4 = -1.73

User David Olsson
by
2.9k points