document.write( "Question 110811This question is from textbook
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document.write( ": John can complete a paper route in 20 minutes. Steve can complete the same route in 30 minutes. How long will it take to complete the route if they worked together? \n" );
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Algebra.Com's Answer #80804 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! John can complete a paper route in 20 minutes. Steve can complete the same route in 30 minutes. How long will it take to complete the route if they worked together? \n" ); document.write( "---------------- \n" ); document.write( "John DATA: \n" ); document.write( "Time = 20 min/job ; Rate = 1/20 job/min \n" ); document.write( "--------------- \n" ); document.write( "Steve DATA: \n" ); document.write( "Time = 30 min/job ; Rate = 1/30 job/min \n" ); document.write( "---------------- \n" ); document.write( "Together DATA: \n" ); document.write( "Time = x min/job ; Rate = 1/x job/min \n" ); document.write( "----------------- \n" ); document.write( "EQUATION: \n" ); document.write( "rate + rate = together rate \n" ); document.write( "1/20 + 1/30 = 1/x \n" ); document.write( "(30+20)/600 = 1/x \n" ); document.write( "50/600 \n" ); document.write( "5/60 = 1/x \n" ); document.write( "x = 60/5 = 12 minutes (time for this to do the job together) \n" ); document.write( "=============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |