document.write( "Question 183266: a boat can travel 222 miles in 6 hours upriver.it takes the same boat 4 hours to travel downriver the same 222 miles.determine the speed of the boat in still water and the speed of the water current \n" ); document.write( "
Algebra.Com's Answer #137650 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!
Distance(d) equals Rate(r) times Time(t) or d=rt; r=d/t and t=d/r
\n" ); document.write( "Let r=rate of the current
\n" ); document.write( "And let s=speed of boat in still water\r
\n" ); document.write( "\n" ); document.write( "Upstream:
\n" ); document.write( "s-r=222/6=37-----------------eq1
\n" ); document.write( "Downstream:
\n" ); document.write( "s+r=222/4=55.5------------------eq2\r
\n" ); document.write( "\n" ); document.write( "add eq1 and eq2
\n" ); document.write( "2s=92.5
\n" ); document.write( "s=46.25 mph-------------speed of boat in still water
\n" ); document.write( "from eq1
\n" ); document.write( "46.25-r=37
\n" ); document.write( "r=9.25 mph------------------------speed of the current\r
\n" ); document.write( "\n" ); document.write( "Hope this helps---ptaylor
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