document.write( "Question 1129892: Suppose that a cyclist began a 578 mi ride across a state at the western edge of the​ state, at the same time that a car traveling toward it leaves the eastern end of the state. If the bicycle and car met after 8.5 hr and the car traveled 37.8 mph faster than the​ bicycle, find the average rate of each. \n" ); document.write( "
Algebra.Com's Answer #746516 by josmiceli(19441)\"\" \"About 
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\n" ); document.write( "traveling at the sum of their speeds for
\n" ); document.write( "the entire distance while the other one
\n" ); document.write( "is standing still
\n" ); document.write( "Let \"+s+\" = the speed of the bike
\n" ); document.write( "in mi/hr
\n" ); document.write( "\"+s+%2B+37.8+\" = the speed of the car
\n" ); document.write( "in mi/hr
\n" ); document.write( "-----------------------------------------------
\n" ); document.write( "\"+578+=+%28+s+%2B+s+%2B+37.8+%29%2A8.5+\"
\n" ); document.write( "\"+578+=+%28+2s+%2B+37.8+%29%2A8.5+\"
\n" ); document.write( "\"+2s+%2B+37.8+=+68+\"
\n" ); document.write( "\"+2s+=+30.2+\"
\n" ); document.write( "\"+s+=+15.1+\"
\n" ); document.write( "and
\n" ); document.write( "\"+s+%2B+37.8+=+52.9+\"
\n" ); document.write( "-------------------------
\n" ); document.write( "The bike's speed was 15.1 mi/hr
\n" ); document.write( "The car's speed was 52.9 mi/hr
\n" ); document.write( "--------------------------------------
\n" ); document.write( "check:
\n" ); document.write( "\"+d%5B1%5D+=+15.1%2A8.5+\"
\n" ); document.write( "\"+d%5B1%5D+=+128.35+\"
\n" ); document.write( "and
\n" ); document.write( "\"+d%5B2%5D+=+52.9%2A8.5+\"
\n" ); document.write( "\"+d%5B2%5D+=+449.65+\"
\n" ); document.write( "and
\n" ); document.write( "\"+d%5B1%5D+%2B+d%5B2%5D+=+128.35+%2B+449.65+\"
\n" ); document.write( "\"+d%5B1%5D+%2B+d%5B2%5D+=+578+\"
\n" ); document.write( "OK
\n" ); document.write( "
\n" );