document.write( "Question 1149780: Hi\r
\n" ); document.write( "\n" ); document.write( "a student was driving to school at 50mph. A quarter of the way he ran out of petrol. If he ran the rest of the way at 10mph what was his average speed.\r
\n" ); document.write( "\n" ); document.write( "thank you \n" ); document.write( "

Algebra.Com's Answer #771156 by MathTherapy(10549) $\"\"$ $\"About$

You can put this solution on YOUR website!
Hi\r
\n" ); document.write( "\n" ); document.write( "a student was driving to school at 50mph. A quarter of the way he ran out of petrol. If he ran the rest of the way at 10mph what was his average speed.\r
\n" ); document.write( "\n" ); document.write( "thank you
\n" ); document.write( "

With the student driving  of the distance, and at 50 mph, time spent driving = 
\n" );
document.write( "With the student running  of the distance, and at 10 mph, time spent running = 
\n" );
document.write( "Average Speed = 
\n" );
document.write( "Average Speed = , with D being total distance
\n" );
document.write( " \n" );
document.write( "

\n" );