Question

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.

Which value could replace x in the table?

7 – m
23 – m
8(15 – m)
8(15) – m

Answer 1

23-m

Explanation:

i took that test

Answer 2

8(15 – m)

Explanation:

The complete question is attached.

In the given table, we can observe that the variable x should represents the total time in minutes and free response questions.

However, if we use the table, we find that the total time in minutes can be obtained by multiplying 15-m and 8, because the first expression represents the total number of questions that are free response and 8 represents the time per question.

Therefore, the varible can be only replaced by the product 8(15-m).