document.write( "Question 765260: Please.. I need help\r
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document.write( "two people working together can do a job in 6 hours. if one of them works twice as fast as the other. How long would it take the faster person, working alone, to finish the same job? \n" );
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Algebra.Com's Answer #466030 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! two people working together can do a job in 6 hours. if one of them works twice as fast as the other. How long would it take the faster person, working alone, to finish the same job? \n" ); document.write( "----- \n" ); document.write( "together rate::: 1/6 job/hr. \n" ); document.write( "slower person rate: 1/(2x) job/hr. \n" ); document.write( "faster person rate: 1/x job/hr. \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "rate + rate = together rate \n" ); document.write( "1/x + 1/(2x) = 1/6 \n" ); document.write( "----------- \n" ); document.write( "Multiply thru by 6x::: \n" ); document.write( "6 + 3 = x \n" ); document.write( "x = 9 hrs (time for the slower person to do the job alone) \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======================= \n" ); document.write( " |