document.write( "Question 974429: a car went 346 miles in 6 hours. part of the time the car traveled at 45 mph and part of the time the car traveled at 64 mph. How long did the car travel at each speed? \n" ); document.write( "
Algebra.Com's Answer #596336 by amarjeeth123(569)![]() ![]() ![]() You can put this solution on YOUR website! Let the time the car traveled at 45 mph be x. \n" ); document.write( "Then the time the car traveled at 64 mph is (6-x). \n" ); document.write( "Distance traveled at 45 mph=45x \n" ); document.write( "Distance traveled at 64 mph=64(6-x) \n" ); document.write( "Total distance covered=346 miles \n" ); document.write( "Distance traveled at 45 mph+Distance traveled at 64 mph=Total distance covered \n" ); document.write( "45x+64(6-x)=346 \n" ); document.write( "45x+384-64x=346 \n" ); document.write( "64x-45x=384-346 \n" ); document.write( "19x=38 \n" ); document.write( "x=2 hours \n" ); document.write( "The car traveled for 2 hours at 45 mph and 4 hours at 64 mph. \n" ); document.write( " \n" ); document.write( " |