Final answer:
An adult consuming 500 excess calories a day for two weeks would gain about 2 pounds, as 3,500 extra calories are equal to roughly one pound of body weight.
Step-by-step explanation:
When calculating weight gain related to calorie intake, it's important to understand the principle that an extra 3,500 calories consumed leads to approximately one pound of body weight. In the scenario where an adult consumes 500 excess calories daily for two weeks (14 days), we can calculate the expected weight gain using simple multiplication and division.
Firstly, multiply the daily excess calorie intake (500 kcal) by the number of days (14), which equals 7,000 excess calories.
Then, divide this number by the calories required to gain a pound (3,500 kcal/pound) to find out the total weight gained: 7,000 kcal รท 3,500 kcal/pound = 2 pounds.
So, the expected weight gain for the individual would be approximately 2 pounds (Answer - d).