document.write( "Question 456881: A motor Boat took 4 hours to make a downstream trip with a current of 3mph. The return trip against the current the same current took 8 hours.find the speed of the boat in still water. \n" ); document.write( "
Algebra.Com's Answer #313492 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
4(x+3)=8(x-3)
\n" ); document.write( "4x+12=8x-24
\n" ); document.write( "36=4x
\n" ); document.write( "x=9
\n" ); document.write( "The speed of the boat in still water is 9 mph..
\n" ); document.write( "
\n" );