document.write( "Question 29569: The speed of a boat in still water is 16 mph. The boat traveled the same distance downstream in 9 minutes that it traveled upstream in 15 minutes. Find the speed of the current.
\n" );
document.write( "Mary \n" );
document.write( "
Algebra.Com's Answer #16343 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Let the speed of the current be x\r \n" ); document.write( "\n" ); document.write( "9 minutes = 0.15hours \n" ); document.write( "15 minutes = 0.25 hors \n" ); document.write( "EquatioN:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "0.15(16+x)=0.25(15-x) \n" ); document.write( "2.4+0.15x=4-0.25x \n" ); document.write( "-1.6=-0.4x \n" ); document.write( "x=4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " Hence, the speed of the current is 4mph. \n" ); document.write( "Paul. \n" ); document.write( " |