A user provides a language model with the following word problem: 'A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?' The model immediately responds: 'The ball costs $0.10.' The user is unsure if the answer is correct or how the model arrived at it. Based on this scenario, explain how prompting the model to generate a step-by-step explanation before its final answer would address the user's concerns. In your explanation, identify at least two distinct advantages of this approach.