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Expert: Sherry Wallin - 1/22/2010


Question
Is there a method using math to analyze the best time to replace a vehicle?

Answer
Hi Carol~
    Yes and no. It depends on the vehicle and it's data of performance and reliability. In general 'they' say most vehicles today are reliable at least until 100,000 miles (unless it is a lemon) and as far as resale value, the lower the mileage the more you will get when you resell. Most cars are still in basically good shape at 100,000 as long as they have been serviced regularly. It seems that somewhere near 100,000 miles they will begin to nickel and dime you to death. I'd say 75,000 is probably a good time to sell to get the maximum $ back out of the car and to give the buyer some value before it nickels and dimes him to death.

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Sherry Wallin

Expertise

I can answer most questions up through Calculus and some in Number Theory and Abstract Algebra.

Experience

I have had my Bachelor's Degree since 1987 and have been a teacher since 1988. I earned my Masters Degree in Mathematics May 2010. I have been teaching at the same community college since 2002.

Education/Credentials
I have taught 12 years at the community college level, medical college, and technical college as well as a high school instructor and alternative education instructor and charter school instructor.

Awards and Honors
Master's GPA 3.56 Bachelor's GPA 3.34 Post grad work not degree related GPA 4.0

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