Science:Math Exam Resources/Courses/MATH102/December 2016/Question B 07 (a)
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Question B 07 (a) 

Each day 100,000 people use Vancouver’s public transit system. Translink estimates that 2000 of those people ride on transit without paying (called free riders). The number of free riders caught by Translink officers in any particular day is given by where and is the number of Translink officers on duty that day. Each officer on duty costs Translink 1000 dollars per day. (a) The fine collected from each free rider caught is F dollars and Translink hires officers. Write the function showing net revenue from fines and cost of hiring? 
Make sure you understand the problem fully: What is the question asking you to do? Are there specific conditions or constraints that you should take note of? How will you know if your answer is correct from your work only? Can you rephrase the question in your own words in a way that makes sense to you? 
If you are stuck, check the hint below. Consider it for a while. Does it give you a new idea on how to approach the problem? If so, try it! 
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Hint 

Considering (Net revenue) = (Total fine)  (Cost of hiring), write the right hand side in terms of functions of , 
Checking a solution serves two purposes: helping you if, after having used the hint, you still are stuck on the problem; or if you have solved the problem and would like to check your work.

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Solution 

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Please rate my easiness! It's quick and helps everyone guide their studies. From the Hint, we have (Net revenue) = (Total fine)  (Cost of hiring). When we hire officers, the total fine can be written in terms of as follows; . On the other hand, we have . Combining two terms, we have

Please rate how easy you found this problem:
Hard Easy 
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