Sleep Hours of U.S. College Students Actual sleep hours 80% Sleep hours to function best 66 70% 60% 50 50% 40% 30% 20 20% 12 10% 5 y [3, 5) [5, 7) [7, 9) [9, 11) Sleep Hours Percentage of College Students 2.

Sleep Hours of U.S. College Students Actual sleep hours 80% Sleep hours to function best 66 70% 60% 50 50% 40% 30% 20 20% 12 10% 5 y [3, 5) [5, 7) [7, 9) [9, 11) Sleep Hours Percentage of College Students 2.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter9: Systems Of Equations And Inequalities

Section9.4: Linear Programming

Problem 1E

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Question

Use a system of linear equations to solve:A number of studies have emphasized the importance of sleep for students’ success in their academic performance.The bar graph shows the actual sleep hours and the sleep hours to function best for U.S college students.A total of 45% of college students sleep between 5 and 7 hours or between 9 and 11 hours. The difference in the percentagewho sleep between 5 and 7 hours and between 9 and 11 hours is 41%. Find the percentage of college students who sleep between 5 and 7 hours and the percentage of college students who sleep between 9 and 11 hours.

Sleep Hours of U.S. College Students
Actual sleep hours
80%
Sleep hours to function best
66
70%
60%
50
50%
40%
30%
20
20%
12
10%
5
y
[3, 5)
[5, 7)
[7, 9)
[9, 11)
Sleep Hours
Percentage of College Students
2.

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ISBN:

9781133382119

Author:

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Publisher:

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