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3. Jack and Jill work at the same store. Jack's total weekly salary, in dollars, if he sells x items is given by S = 100 + 5x, and Jill's total weekly salary, in dollars, if she sells x items is given by S = 80+ 6x. If they sell the same number of items in a week, what is the minimum number of items they have to sell so that Jill's weekly salary is at least $300 more than Jack's?

3. Jack and Jill work at the same store. Jack's total weekly salary, in dollars, if he sells x items is given by S = 100 + 5x, and Jill's total weekly salary, in dollars, if she sells x items is given by S = 80+ 6x. If they sell the same number of items in a week, what is the minimum number of items they have to sell so that Jill's weekly salary is at least $300 more than Jack's?

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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= 3. Jack and Jill work at the same store. Jack's total weekly salary, in dollars, if he sells x items is given by S 100 + 5x, and Jill's total weekly salary, in dollars, if she sells x items is given by S 80+ 6x. If they sell the same number of items in a week, what is the minimum number of items they have to sell so that Jill's weekly salary is at least $300 more than Jack's?
Transcribed Image Text:= 3. Jack and Jill work at the same store. Jack's total weekly salary, in dollars, if he sells x items is given by S 100 + 5x, and Jill's total weekly salary, in dollars, if she sells x items is given by S 80+ 6x. If they sell the same number of items in a week, what is the minimum number of items they have to sell so that Jill's weekly salary is at least $300 more than Jack's?
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