Deniz had a full gallon of milk. she poured out 4 cups of milk. there are 16 cups in 1 gallon. about what percent of the original volume is left?

75% of the original volume is left.

Step-by-step explanation:

Deniz had a full gallon of milk, or 16 cups of milk, and then she poured out 4 cups of milk. That is:

Then,

The total left is:

, since we are dealing here with fractions with the same denominator.

In other words, is the amount of milk left in the container.

In terms of percentage, is equivalent to of the original volume, because Deniz poured out or from the original volume.

So, Deniz left 75% of the original volume of milk after pouring out 25% of it.        

This can be represented in the graph below.