document.write( "Question 916639: Two bicyclists are 200 miles apart when they start racing towards one another. If their speeds are 12 mph and 6 mph respectively, how much time will elapse before they are 20 miles apart?
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Algebra.Com's Answer #556169 by ewatrrr(24785)\"\" \"About 
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D = rt
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\n" ); document.write( "(12mph)t + (6mph)t = 180mi
\n" ); document.write( "18t = 18
\n" ); document.write( "t = 10hrs, the time that will elapse before they are 20 miles apart\r
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