Question

The water level in the aquarium's shark tank is always greater than 25 feet. If the water level decreases by 6 feet during cleaning, what was the water level before the cleaners took out any water?

Answer 1

Greater than 31 feet.

Explanation:

Let x be the water level before the cleaners took out any water.

Now, the water level decreased by 6 feet during cleaning.

Hence, the water level after cleaning is x -6

Now, it has been given that water level in the aquarium's shark tank is always greater than 25 feet

Thus, the inequality for the situation is

`x-6>25`

Add 6 to both sides

`x>25+6\\x>31`

Hence, the water level before the cleaners took out any water was greater than 31 feet.