document.write( "Question 384773: Two boys on bicycles start from the same place and ride in opposite directions. One rides twice as fast as the other one. in 3 hours, they are 27 kilometers apart. what is the rate of speed for each boy? \n" ); document.write( "

Algebra.Com's Answer #272376 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


\n" );
document.write( "Hi,         
\n" );
document.write( "Let x and 2x represent  their respective speeds
\n" );
document.write( "D = r*t
\n" );
document.write( " 3hr*x + 3hr*2x = 27km
\n" );
document.write( "     9hr*x = 27km
\n" );
document.write( "      x = 3kmph
\n" );
document.write( "  3kmph and 6kmph the speeds for the two boys.\r
\n" );
document.write( "\n" );
document.write( "CHECKING Our Anwser
\n" );
document.write( " 3hr*3kmph + 3hr*6kmph = 27km \n" );
document.write( "

\n" );