(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
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
Algebra 2
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