document.write( "Question 321344: URGENT!\r
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document.write( "1.While waiting for a train, alvin takes a bus ride at 60 kph to a certain point and then take walks back leisurely at 10 kph. The bus takes 1/4 hour less than his walking. How far does he walk and how long.\r
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Algebra.Com's Answer #230163 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! .While waiting for a train, alvin takes a bus ride at 60 kph to a certain point \n" ); document.write( " and then take walks back leisurely at 10 kph. The bus takes 1/4 hour less than his walking. \n" ); document.write( " How far does he walk and how long. \n" ); document.write( ": \n" ); document.write( "Let t = time he walked \n" ); document.write( "then \n" ); document.write( "(t-.25) = time rode; (changed 1/4 to .25) \n" ); document.write( ": \n" ); document.write( "Write a distance equation; dist = speed * time \n" ); document.write( ": \n" ); document.write( "riding dist = walking dist \n" ); document.write( "60(t-.25) = 10t \n" ); document.write( "60t - 15 = 10t \n" ); document.write( "60t - 10t = 15 \n" ); document.write( "50t = 15 \n" ); document.write( "t = \n" ); document.write( "t = .3 hrs, which is .3*60 = 18, min is time he walked \n" ); document.write( ": \n" ); document.write( "Find the dist \n" ); document.write( "10 * .3 = 3 km he walked, (and rode) \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Confirm our solutions by finding the dist he rode \n" ); document.write( "(.3-.25) * 60 = \n" ); document.write( ".05 * 60 = 3 km also \n" ); document.write( " \n" ); document.write( " |