Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.
There are 15 questions on the test and the students have been given 55 minutes to complete it. A Table titled Test Time, showing Number of Questions, Time per Item in minutes, and Total Time in minutes. The first row shows Multiple Choice, with m, 3, and 3 m. The second row shows Free Response, with 15 minus m, 8, and x. The third row shows Total, with 15, blank, and 55. Which value could replace x in the table? Which value could replace x in the table?
You want to use the addition property, so you need to ADD each term. Just change the minuses to pluses, making sure you keep the negative with the number
