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Inequalitiesmedium
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A manufacturing process outputs a batch of items with weight WWW (in kilograms) such that the variance from the target weight of 101010 kg is at most 1.51.51.5 kg. This is expressed by the inequality ∣W−10∣≤1.5|W - 10| \leq 1.5∣W−10∣≤1.5. If a different machine produces items with a weight Wnew=2W−5W_{new} = 2W - 5Wnew​=2W−5, what is the range of WnewW_{new}Wnew​?