Respuesta :
The fraction is 7/8 is really close to 1, so you could estimate that the water level
changes by approximately -5 inches per month. The total change in the water
level at the end of the 3 month period would be approximately -15 inches.
Answer:
If the water level at the lake is decreased by the rate r each month, then the total change in water level at the end of the 3 month period is -3r.
Step-by-step explanation:
It is given that the water level at the lake continued to change at the same rate for 3 months in a row.
Let the water level at the lake is decreased by the rate r each month.
Change in the water level for 1 month period = -r units
Change in the water level for 2 month period = -2r units
Change in the water level for 3 month period = -3r units
So, we conclude that if the water level at the lake is decreased by the rate r each month, then the total change in water level at the end of the 3 month period is -3r.