document.write( "Question 25040: Hi I need help with one of my problems its: Terrell drove to the mountains at an average of 60 miles per hour. His return trip by the same roads averaged 40 miles per hour. His total driving time was 12 hours. How far did he drive one way? Please help me thank you. \n" ); document.write( "
Algebra.Com's Answer #13424 by Paul(988) ![]() You can put this solution on YOUR website! Let the x be the unkowns. \n" ); document.write( "Since he drove at an average of 60mph at x distance \n" ); document.write( "abd Return at 40mph at x distance; Total time was 12 for the whole trip. \n" ); document.write( " \n" ); document.write( "Commom Multiple = 120 \n" ); document.write( " \n" ); document.write( "Simplify \n" ); document.write( "2x+3x=1440 \n" ); document.write( "5x=1440 (divide both sides by 5) \n" ); document.write( "x = 288 \n" ); document.write( "288/60= 4.8 \n" ); document.write( "288/40=7.2 \n" ); document.write( "4.8+7.2=12 (it checks)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, the total distance travelled was 288 miles; for 60mph the time was 4.8h and for 40mph the time was 7.2h. \n" ); document.write( "Paul. \n" ); document.write( " |