
Concept explainers
(a)
To find how many students, who ranked basketball as their favorite sports?
(a)

Answer to Problem 39PPS
There were
Explanation of Solution
Given:
Surveying
Concept Used:
To find number of students,
We are using cross-multiplication method
Calculation:
As per given information,
Let the number of students be
Conclusion:
Hence,
(b)
To find that how many students ranked football or soccer as their favorite sport?
(b)

Answer to Problem 39PPS
Hence,
Explanation of Solution
Given:
Surveying
Concept Used:
To find number of students,
We are adding the percentage of both sport
Calculation:
As per given information,
The percentage of students who ranked football or soccer as their favorite sport is
Percentage of football + percentage of soccer, we get
So, about half of the students, or
Conclusion:
Hence,
Chapter 7 Solutions
Pre-Algebra Student Edition
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Thinking Mathematically (6th Edition)
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