document.write( "Question 1122543: Raphael is traveling in a straight line at a constant speed from point A to point B. His distance from point B in miles is –20t + 45, where t is number of hours he has been traveling. What is his speed in miles per hour?
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Algebra.Com's Answer #738670 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
-20 mi/hr
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