Answer:
640 kilocalories are there in this 2-cup serving.
Explanation:
Proportion states that the two ratios or fractions are equal.
As per the given statement: There are 1600 kilocalories in 5 cups of dog food that mike gives his adult dog. Mike gives his puppy 2 cups of the same dog food.
Let x kilocalories are there in 2-cup serving.
then, by definition of proportion;

Multiply both sides by 2 we get;

Simplify:

Therefore, 640 kilocalories are there in this 2-cup serving.