document.write( "Question 964547: An airplane flies 3,645 miles in 7.5 hours. What is the speed of the airplane in miles per hour? Use the equation d=rt, where d is distance, r is rate, and t is time. \n" ); document.write( "
Algebra.Com's Answer #589404 by macston(5194)\"\" \"About 
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\n" ); document.write( "d=rt Divide each side by t.
\n" ); document.write( "d/t=r
\n" ); document.write( "3645 miles/7.5 hours=486 miles/hr
\n" ); document.write( "ANSWER: The speed of the plane was 486 miles per hour.
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