document.write( "Question 106158: another problem..\r
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document.write( "If a bus traveled 10 km/h faster, it would take 2h less time to make a 315km trip. What is its speed?\r
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document.write( "Thanks! \n" );
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Algebra.Com's Answer #77278 by HyperBrain(694)![]() ![]() ![]() You can put this solution on YOUR website! Let x=the original speed \n" ); document.write( "____x+10=the increased speed\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If a bus traveled 10 km/h faster, it would take 2h less time to make a 315km trip\r \n" ); document.write( "\n" ); document.write( "time for the car traveling with its orig. speed= \n" ); document.write( "\n" ); document.write( "time for the car with faster speed = \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This means that:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Using the quadratic formula,\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The discriminant is negative------the roots are unequal and imaginary(see my lesson,\"Don't discriminate the DISCRIMINANT!!!!!\" and,\r \n" ); document.write( "\n" ); document.write( "therefore, there is no solution!\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Power up, \n" ); document.write( "HyperBrain! \n" ); document.write( " |