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Proportions and relationships in two-variable systems

Click here to download section 1.4 of Tom Hardy’s Physical Science and Technology textbook.

About the Author

Thomas Hardy

Tom Hardy’s undergraduate education consisted of engineering and mathematics at Cornell University, and a B.S. is in Chemistry from Roosevelt University. Tom’s graduate work was done at the University of Chicago in Mathematics Education but with no degree. Tom has over 20 years teaching Science and Math and administering in high schools,...

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