document.write( "Question 487196: I need help on the following word problem.\r
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document.write( "A commuter bus takes 2 hours to get downtown; an express bus, averaging 25 mph faster, takes 45 minutes to cover the same route. What is the average speed for the commuter bus? \n" );
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Algebra.Com's Answer #332985 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! 3/4(n+25)=2n \n" ); document.write( "3n/4+75/4=2n \n" ); document.write( "75/4=5n/4 \n" ); document.write( "5n=75 \n" ); document.write( "n=15 \n" ); document.write( "2n=30 \n" ); document.write( "The route is 30 miles long each way- \n" ); document.write( "60 miles/2-3/4 hours=60/11/4=240/11=21.81 mph average.. \n" ); document.write( " |