Question

Who's Correct? Michael and Shelley each evaluated the same expression. Who is correct? How do you know?

Answer 1

To determine who is correct, compare the evaluations of Michael and Shelley on the same expression using the order of operations.

Step-by-step explanation:

To determine who is correct, we need to compare the evaluations of Michael and Shelley on the same expression. Both evaluations should yield the same result if they are correct. If their evaluations differ, at least one of them is incorrect.

Here is how you can check:

1. Start with the given expression.
2. Apply the order of operations (e.g., parentheses, exponents, multiplication/division, addition/subtraction) to simplify the expression.
3. Substitute the values of any variables if given.
4. Perform the operations according to the order of operations.
5. Compare the results of Michael and Shelley's evaluations.

If their evaluations yield the same result, both Michael and Shelley are correct. If their evaluations differ, one of them is incorrect.