Problem 187 of 7
Diagnose the setup or solving error in modeled equation work For rectangle area, student writes 2x+2(x+4)=45.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
catch model-choice, algebra, and contextual-validity errors.
Hidden until you reveal it.
Worked example must contain model-choice, algebra, or contextual-validity error.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the intended context relationship.
2. Compare the setup and solving steps with that relationship.
3. Name the error and give the corrected approach.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Saying only that the answer is wrong.