document.write( "Question 1125096: a motorist drives 80km per hour in 5 hours and another 60 km per hour in 4 hours. find the average speed for the whole journey \n" ); document.write( "
Algebra.Com's Answer #741413 by josgarithmetic(39620)![]() ![]() ![]() You can put this solution on YOUR website! Total distance, (80*5+60*4) kilometers, 640 kilometers\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Total time, 9 hours\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Speed of whole journey, average, |