For Exercises
A teacher knows that
A.
B.
C.
D.
To Write: It is being asked to find the inequality that represents this situation.
Answer to Problem 5STP
D.
Explanation of Solution
Given information: Class average is 85% on the test. A teacher knows that 80% of her students will score no more than 5 points above or below the class average of 85%.
Calculation:
Average score is 85%
5% is below or above the average.
Let the score as ‘ x’
So, we can setup inequality as
Simplify and solve for x .
So, add 85 on each term.
Simplify it,
Chapter 3 Solutions
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