Question

Mrs. Bergstedt teaches six classes. In her first period class she has 19 students, her third period she has 13 students, her fourth period 19 students, her fifth period 9 students, her sixth period 14 students, and her seventh period 15 students. What is her average class size, to the nearest tenth?

A) 14 students
B) 14.8 students
C) 17 students
D) 17.8 students

Answer 1

Total students in the 6 classes: 19 + 13 + 19 + 9 + 14 + 15 = 89

Average class size = 89 ÷ 6 = 14.8

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Answer: Her average class class is 14.8 (Answer B)
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Answer 2

We find the average by adding up all the students and dividing them by the number of classes she has. 19 + 13 + 19 + 9 + 14 + 15 is 89, and that divided by 6 is approximately 14.8, rounded to the nearest tenth.
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Hope this helps!