Prof liu gave the same quiz to the students in her morning class and in her afternoon class. the average score for the two classes combined was 84. which class had more students ? (1) the average score for the students in the morning class was 80(2) the average score for the students in the afternoon class was 86

The number of students is more in afternoon class.

Step-by-step explanation:

The average marks for the two classes combined = 84

The final average marks would be shifted more towards the average marks of the class with more number of students.

This is because the formula for final mean is

                                =

Since final mean 84 is closer to average of class 2 which is 86, hence the number of students is more in afternoon class.

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.

step-by-step explanation:

options