document.write( "Question 46783: A bike leaves @ 8:00 am traveling at 10 mph. A car leaves, heading in the same direction @ 11:00 am traveling at 50 mph. How many minutes after 11:00 will the car overpass the bike. The computer program gives the answer of 45 minutes, but I can't figure out how? Thanks! \n" ); document.write( "
Algebra.Com's Answer #30969 by Nate(3500)![]() ![]() ![]() You can put this solution on YOUR website! 'y' expresses distance traveled \n" ); document.write( "y = 10mph + 30 the biker has already traveled 30 miles when the car leaves \n" ); document.write( "y = 50mph \n" ); document.write( "Combine: \n" ); document.write( "10x + 30 = 50x \n" ); document.write( "30 = 40x \n" ); document.write( "3/4 = x \n" ); document.write( "Sixty minutes in an hour. (60)(3/4) = 45 minutes \n" ); document.write( " |