document.write( "Question 245314: Kay rode his bike from his home to Daniels and walked back home. The total travel time was 45 minutes. If Kay average 20 mph on the bike and 4 mph walking, how far does Daniel live from Kay. \n" ); document.write( "
Algebra.Com's Answer #179231 by stanbon(75887) ![]() You can put this solution on YOUR website! Kay rode his bike from his home to Daniels and walked back home. \n" ); document.write( "The total travel time was 45 minutes. \n" ); document.write( "If Kay average 20 mph on the bike and 4 mph walking, how far does Daniel live from Kay. \n" ); document.write( "--------------------------------------- \n" ); document.write( "Bike DATA: \n" ); document.write( "rate = 20 mph ; distance = x miles ; time = d/r = x/20 hrs. \n" ); document.write( "------------------------ \n" ); document.write( "Walking DATA: \n" ); document.write( "rate = 4 mph ; distance = x miles ; time = d/r = x/4 hrs. \n" ); document.write( "------------------------ \n" ); document.write( "Equation: \n" ); document.write( "time + time = 3/4 hr. \n" ); document.write( "x/20 + x/4 = 3/4 \n" ); document.write( "x + 5x = 15 \n" ); document.write( "6x = 15 \n" ); document.write( "x = 5/2 = 2.5 miles (distance from Kay's house to Daniel's) \n" ); document.write( "============================================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |