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)\"\" \"About 
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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.
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