Concept explainers
To justify the given statement.
Answer to Problem 7.4.5P
Sometimes, average of a student’s midterm exam score and final term exam score is a whole number.
Explanation of Solution
Given information:
Category | Type of score |
Midterm Exam | Whole number from 0 to 100 |
Final Exam | Whole number from 0 to 100 |
Quizzes | Rational number from 0 to 10 |
Homework | 0, |
Formula used: Number system theory.
Sometimes, average of a student’s midterm exam score and final term exam score is a whole number.
Let’s take an example:
Student’s midterm exam score is 95 and final term exam score is 94
Student’s average score is:
Which is
Which is a rational number not a whole number
Let’s take another example:
Student’s midterm exam score is 94 and final term exam score is 94
Student’s average score is:
On solving it comes out to be, 94.
Which is a whole number.
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Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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