document.write( "Question 554859: Hello,
\n" );
document.write( " I am in Algebra and I really need your help.
\n" );
document.write( "This is my question:
\n" );
document.write( "Traveling downstream a certain boat went 11 mph. Traveling upstream it only went 1 mph. Find the current and the speed of the boat if there were no current.\r
\n" );
document.write( "\n" );
document.write( "The work I tried to do: 11+1= 12mph *60=720
\n" );
document.write( "I don't know what i was doing. If you can, please show the work and maybe explain it to me.
\n" );
document.write( "Thank you for your time and dedication to help me. \n" );
document.write( "
Algebra.Com's Answer #361504 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Traveling downstream a certain boat went 11 mph. Traveling upstream it only went 1 mph. Find the current and the speed of the boat if there were no current. \n" ); document.write( "------------- \n" ); document.write( "Down speed = b + c (boat + current) \n" ); document.write( "Up speed = b - c (boat - current) \n" ); document.write( "----- \n" ); document.write( "b + c = 11 \n" ); document.write( "b - c = 1 \n" ); document.write( "-------------- Add \n" ); document.write( "2b = 12 \n" ); document.write( "b = 6 mi/hr \n" ); document.write( "------ \n" ); document.write( "c = 5 mi/hr \n" ); document.write( "============ \n" ); document.write( "The boat's speed is the average, = (11+1)/2 = 6 \n" ); document.write( "The current is the difference, 11 - 6 = 5 \n" ); document.write( " |