(a)
To write: an inequality that can be solved to find the minimum score he must earn on Quiz 6.
(a)
Answer to Problem 14STP
The inequality is,
Explanation of Solution
Given information:
The table as the right shows R’s scores on the first 5 math quizzes this quarter. Each quiz is worth 100 points. There will be 1 more quiz this quarter.
In order to receive a B, R must have a quiz average of 82 or better.
Calculation:
The average is easily calculated by dividing total number of points with number of quizzes taken.
In case R,
This inequality represents sum of already taken quiz scores plus 3
So, the inequality is,
(b)
To solve: the inequality.
(b)
Answer to Problem 14STP
The value of inequality is
Explanation of Solution
Given information:
The table as the right shows R’s scores on the first 5 math quizzes this quarter. Each quiz is worth 100 points. There will be 1 more quiz this quarter.
In order to receive a B, R must have a quiz average of 82 or better.
Calculation:
Consider the inequality,
Now, solve the inequality as shown,
So, the value of inequality is
(c)
To find: the solution does mean.
(c)
Answer to Problem 14STP
Explanation of Solution
Given information:
The table as the right shows R’s scores on the first 5 math quizzes this quarter. Each quiz is worth 100 points. There will be 1 more quiz this quarter.
In order to receive a B, R must have a quiz average of 82 or better.
Calculation:
The solution means that R has to make at least 85 points on last quiz to secure B grade.
Chapter 1 Solutions
Glencoe Algebra 2 Student Edition C2014
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