Final answer:
Río can eat a maximum of 200 new cookies to stay within their kilocalorie range.
Step-by-step explanation:
To determine how many new cookies Río can eat to maintain their kilocalorie range, we need to know the kilocalorie limit of Río's range. Let's say Río's kilocalorie range is 1500-2000 kilocalories per day. If each new cookie contains 10 kilocalories, we can divide the range by the kilocalories per cookie to find the maximum number of cookies Río can eat. In this case, Río can eat a maximum of 200 cookies (2000 kilocalories / 10 kilocalories per cookie) to stay within their kilocalorie range.
Learn more about caloric intake