Question

Describe a situation that could be represented by theequation y=x-0.3x.Be sure to explain what x and y mean in your situation,

Answer 1

We are asked to describe a situation that could be represented by the equation

`y=x-0.3x`

Suppose that y is the number of liters of water in a tank.

And x is the number of hours.

Each hour, 30% (0.3) of the water is evaporated from the tank. (subtracted)

So the equation completely models the above scenario.

`y=x-0.3x`

For example:

What will be the amount of water in the tank after 10 hours?