document.write( "Question 508407: An airplane travels 500 km in 2.5 hours. What is the average speed of the plane?
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Algebra.Com's Answer #340975 by stanbon(75887)\"\" \"About 
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An airplane travels 500 km in 2.5 hours. What is the average speed of the plane?\r
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\n" ); document.write( "rate = distance/time
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\n" ); document.write( "rate = 500/2.5 = 200 km/hr
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