document.write( "Question 1150162: A bow goes 240 miles downstream in the same time making go 160 miles upstream the speed of the current is 5 mph what is the speed of the boat in still water ? \n" ); document.write( "

Algebra.Com's Answer #771514 by ikleyn(52909) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "A $\"highlight%28cross%28bow%29%29\"$ boat goes 240 miles downstream in the same time making go 160 miles upstream the speed of the current is 5 mph
\n" ); document.write( "what is the speed of the boat in still water ?
\n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "Time equation is\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "     = \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Cross multiply and simplify\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    240*(x-5) = 160*(x+5)\r\n" );
document.write( "\r\n" );
document.write( "    240 - 1200 = 160x + 800\r\n" );
document.write( "\r\n" );
document.write( "    240x - 160x = 800 + 1200\r\n" );
document.write( "\r\n" );
document.write( "      80x = 2000\r\n" );
document.write( "\r\n" );
document.write( "        x =  = 25\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "ANSWER.  25 mph.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "CHECK.    =  = 8.\r\n" );
document.write( "\r\n" );
document.write( "          =  = 8.    ! Correct !\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );