Concept explainers
a.
To calculate: Shane’s score for his sixth game.
a.
Answer to Problem 25STP
Shane’s score for his sixth gameis 155.
Explanation of Solution
Given information:
Shane and Cho have the bowling scores shown.
Game # | Shane | Cho |
1 | 124 | 125 |
2 | 135 | 132 |
3 | 109 | 128 |
4 | 116 | 130 |
5 | 141 | 125 |
After the sixth game, the mean of Shane’s score is 130.
Calculation:
Total score of Shane after fifth game
The mean score of Shane after sixth game
Therefore, total score of Shane after sixth game
Then, score of Shane for sixth game
Conclusion:
Shane’s score for his sixth gameis 155.
b.
To calculate:Cho’s score in his sixth game in order to have the same average as Shane.
b.
Answer to Problem 25STP
Cho has to score 140 in his sixth game in order to have the same average as Shane.
Explanation of Solution
Given information:
Shane and Cho have the bowling scores shown.
Game # | Shane | Cho |
1 | 124 | 125 |
2 | 135 | 132 |
3 | 109 | 128 |
4 | 116 | 130 |
5 | 141 | 125 |
After the sixth game, the mean of Shane’s score is 130. Cho has the same average as Shane.
Calculation:
Total score of Cho after fifth game
The mean score of Cho after sixth game
Therefore, total score of Cho after sixth game
Then, score of Cho for sixth game
Conclusion:
Cho has to score 140 in his sixth game in order to have the same average as Shane.
Chapter 13 Solutions
Pre-Algebra, Student Edition
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