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6) Solve the inequality 21x +5x >6 and put your answer in interval notation. 7) Solve for x: 5x-2x+7=0 8) Solve for x:x +x–18 = 12

6) Solve the inequality 21x +5x >6 and put your answer in interval notation. 7) Solve for x: 5x-2x+7=0 8) Solve for x:x +x–18 = 12

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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5) When a tutor charges $10 an hour, they get 20 hours a week of tutoring requests. When the tutor charges $15 an hour, they get 17 hours a week of tutoring requests. Determine the demand equation for their tutoring business, and determine to the nearest penny how much they should charge to get the maximum possible revenue. 6) Solve the inequality 2lr +5x>6 and put your answer in interval notation. 7) Solve for x: 5x - 2x+7=0 8) Solve for x: x +x- 18 = 12 DELL
Transcribed Image Text:5) When a tutor charges $10 an hour, they get 20 hours a week of tutoring requests. When the tutor charges $15 an hour, they get 17 hours a week of tutoring requests. Determine the demand equation for their tutoring business, and determine to the nearest penny how much they should charge to get the maximum possible revenue. 6) Solve the inequality 2lr +5x>6 and put your answer in interval notation. 7) Solve for x: 5x - 2x+7=0 8) Solve for x: x +x- 18 = 12 DELL
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