document.write( "Question 205499: Elena bicycles 8 km/h faster than Dennis. In the same time it takes Dennis to bicycle 60 km/h, Elena can bicycle 84 km. How fast does each bicyclist travel? \n" ); document.write( "
Algebra.Com's Answer #155130 by Targetweek(62)\"\" \"About 
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In x amount of time Dennis travels 60km (typo in question?) and in that same amount of time Elena travels 84km\r
\n" ); document.write( "\n" ); document.write( "You set up a porportion like so \"84%2F60\" when simplified out the ratio of Elena's distance traveled to Dennis' is 1.4\r
\n" ); document.write( "\n" ); document.write( "Because speed and distance are directly related (remember \"S=%28D%2FT%29\")
\n" ); document.write( "the ratio between Elena's speed and Dennis' speed is also 1.4\r
\n" ); document.write( "\n" ); document.write( "Elena is going 1 and \"2%2F5\" the speed of Dennis because .4 = \"2%2F5\"
\n" ); document.write( "if \"2%2F5\" of Dennis' speed is 8 km/h then
\n" ); document.write( "\"8%2A%285%2F2%29+=+20\" multiply by the reciprocal\r
\n" ); document.write( "\n" ); document.write( "so Dennis is Going 20 km/h and Elena is going 28 km/h
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