document.write( "Question 360063: A boat travels up river in 1.2 hours and down river in .9 hours. The boat travels 5 mph faster down river than up river. What speed is the boat traveling up and down river? \n" ); document.write( "
Algebra.Com's Answer #256904 by mananth(16946)\"\" \"About 
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let upstream speed be x
\n" ); document.write( "downstream speed = x+5
\n" ); document.write( "..
\n" ); document.write( "upstream time = 1.2 hours
\n" ); document.write( "downstream time = 0.9 hours
\n" ); document.write( "..
\n" ); document.write( "1.2x=0.9(x+5)
\n" ); document.write( "1.2x=0.9x+4.5
\n" ); document.write( "0.3x=4.5
\n" ); document.write( "x=4.5/0.3
\n" ); document.write( "x=15 mph upstream speed
\n" ); document.write( "20 mph downstream speed
\n" ); document.write( "...
\n" ); document.write( "m.ananth@hotmail.ca
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