document.write( "Question 1158562: Billy and Kendall each drove to their grandmother’s house from their house. Billy left one
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document.write( "hour before Kendall. Billy drove at a rate of 45 mph. Kendall drove at a rate of 60 mph. How long will it take for Kendall to catch up to Billy?
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Algebra.Com's Answer #781541 by ikleyn(52787)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This problem, as it is presented in the post, has HUGE deficiency.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The solution is true ONLY IF the distance from the B&K house to the grandmother house is LONG ENOUGH. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "More concretely, if this distance is longer than 3*60 = 180 miles.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If the distance is shorter, then the solution FALLS.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "An ACCURATE formulation should SPECIALLY reserve/negotiate it.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |