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An airport shuttle company forecasts the number of hours its drivers will work based on the distance to be driven (in miles) and the number of jobs (each job requires the pickup and drop-off of one set of passengers) using the following regression equation:



Travel time=-0.60+0.05(distance)+0.75(number of jobs)



On a given day, Victor and Sofia drive approximately the same distance but Sofia has two more jobs than Victor. If Victor worked for 4 hours, for how long can the company expect Sofia to work?

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Answer:

5.5 Hours

Explanation:

The main difference among both the drivers is the number of jobs and the difference of working hours can only be determined by adding number of jobs.  Sofia has two more jobs compared to victor. Following is the method to calculate the working hours:

4+0.75(2)=5.5 hours

Sofia is expected to work for 5.5 hours

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