Answer:
Marshmallow weighs 10 kilograms.
Explanation:
Let's use the variable "M" to represent Marshmallow's weight in kilograms.
Based on the information given, we know that Marshmallow weighs 1 kilogram less than Fluffy, whose weight is 11 kilograms. Therefore, we can write the equation:
M = 11 - 1
Simplifying the equation:
M = 10
So, Marshmallow weighs 10 kilograms.