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hr 21. If a plane averages 450 miles for 80% of a trip and hits a headwind of for the other 20%, what is
hr 21. If a plane averages 450 miles for 80% of a trip and hits a headwind of for the other 20%, what is its average speed? 50 miles hr
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Chemistry The Central Science
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward
12th edition
321696727, 978-0132175081, 978-0321696724
