document.write( "Question 348965: a bike is travelling 35km/h. A car is travelling 80km/h and begins 180km behind the bike. How long will it take the car to reach the bike? \n" ); document.write( "
Algebra.Com's Answer #249427 by Alan3354(69443)\"\" \"About 
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a bike is travelling 35km/h. A car is travelling 80km/h and begins 180km behind the bike. How long will it take the car to reach the bike?
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\n" ); document.write( "The speed of the car relative to the bike is 45 kph (80 - 35).
\n" ); document.write( "180/45 = 4 hours.
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\n" ); document.write( "All motion is relative. Pick your frame of reference.
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