Due to excessive heat, the water level in a dam decreased by 8.8 meters last month. Now, the water level is 95.3 meters. which equation represents the water level, w, of the dam last month? what was the water level last month?

w + 95.3 = 8.8 the water level of the dam last month was 104. 1 meters

w - 8.8 = 95.3; the water level of the dam last month was 104.1 meters

w - 95.3 = 8.8 the water level dam last month was 86.5 meters

w + 8.8 = 95.3; the water level of the dam last months was 86.5 meters

1 answer

To determine the water level, \( w \), of the dam last month, we understand that the current water level is 95.3 meters and it decreased by 8.8 meters last month. We can express this with the following equation:

\[ w - 8.8 = 95.3 \]

This equation indicates that the water level last month \( w \) minus the decrease of 8.8 meters equals the current water level of 95.3 meters.

Now, let's solve for \( w \):

\[ w = 95.3 + 8.8 \] \[ w = 104.1 \]

So, the water level of the dam last month was 104.1 meters.

Thus, the correct representation is:

Equation: \( w - 8.8 = 95.3 \)
Water Level Last Month: 104.1 meters