SOLUTION: over a period of 3 and 1/2 years 11/20inch of tire wear off.what is the average wear per year

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Question 617594: over a period of 3 and 1/2 years 11/20inch of tire wear off.what is the average wear per year
Answer by Alan3354(69443) About Me  (Show Source):
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over a period of 3 and 1/2 years 11/20inch of tire wear off.what is the average wear per year
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(11/20)/3.5 = 0.55/3.5
=~ 0.15714 in/yr