document.write( "Question 117200: a cruise boat travels 24 miles downstream in 3 hours and returns to its starting point upstream in 6 hours. find the speed of the stream. \n" ); document.write( "
Algebra.Com's Answer #85239 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 24/3=8 MPH FOR THE TRIP DOWNSTREAM. \n" ); document.write( "24/6=4 MPH FOR THE RETURN TRIP. \n" ); document.write( "NOW YOU HAVE 2 EQUATIONS. \n" ); document.write( "R+S=8 WHERE WHERE R=THE RATE OF THE CRUISE BOAT & S=THE STREAM SPEED. \n" ); document.write( "R-S=4 NOW ADD THESE TO FIND THE. \n" ); document.write( "----------- \n" ); document.write( "2R=12 \n" ); document.write( "R=12/2 \n" ); document.write( "R=6 MPH RATE OF THE CRUISE BOAT. \n" ); document.write( "THEREFORE \n" ); document.write( "6+S=8 \n" ); document.write( "S=8-6 \n" ); document.write( "S=2 MPH FOR THE SPEED OF THE STREAM. \n" ); document.write( " \n" ); document.write( " |