document.write( "Question 906063: A boat can travel 51 mph in still water. If it travels 348 miles with the current in the same length of time it travels 264 miles against the current, what is the speed of the current? \n" ); document.write( "
Algebra.Com's Answer #549875 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! r*t=d \n" ); document.write( "(51+c)*t=348 \n" ); document.write( "51*t+c*t=264 \n" ); document.write( "51*t-c*t=348 \n" ); document.write( "add \n" ); document.write( "102t=612 \n" ); document.write( "t=612/102 \n" ); document.write( "t=6 hour \n" ); document.write( "51*6+c*6=348 \n" ); document.write( "306+c*6=348 \n" ); document.write( "c*6=42 \n" ); document.write( "c=42/6 \n" ); document.write( "c=7 mph current \n" ); document.write( "check \n" ); document.write( "(51+c)*t=348 \n" ); document.write( "(51+7)*6=348 \n" ); document.write( "(58)*6=348 \n" ); document.write( "348=348\r \n" ); document.write( "\n" ); document.write( "(51-c)*t=264 \n" ); document.write( "(51-7)*6=264 \n" ); document.write( "(44)*6=264 \n" ); document.write( "264=264 \n" ); document.write( "ok \n" ); document.write( " \n" ); document.write( " |