document.write( "Question 907253: A long distance runner starts at the beginning of a trail and runs at a rate of
\n" );
document.write( "4 miles per hour. Three hours later, a cyclist starts at the beginning of the trail and travels at a rate of
\n" );
document.write( "19 miles per hour. What is the amount of time that the cyclist travels before overtaking the runner?
\n" );
document.write( "Do not do any rounding. \n" );
document.write( "
Algebra.Com's Answer #550224 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! I walk 4 mph!! \n" ); document.write( "Gaining speed 19 -4= 15 mph \n" ); document.write( "Headstart 4*3 =12 miles \n" ); document.write( "Time to catch up 12/15=0.8 hours \n" ); document.write( "Time to catch up =48 minutes \n" ); document.write( "Algebraic solution \n" ); document.write( "4(t+3)=19t \n" ); document.write( "4t+12=19t \n" ); document.write( "12=19t-4t \n" ); document.write( "12=15t \n" ); document.write( "t=0.8 hours \n" ); document.write( "Distance to meeting 0.8*19=15.2 miles\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |