document.write( "Question 659659: How much time is needed for a car whose average speed is 50 km/hour to travel 2100km? \n" ); document.write( "
Algebra.Com's Answer #410852 by Alan3354(69443)\"\" \"About 
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How much time is needed for a car whose average speed is 50 km/hour to travel 2100km?
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\n" ); document.write( "d = r*t
\n" ); document.write( "t = d/r
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