document.write( "Question 1019146: Can I get help on the following question for linear equations and system word ploblem:\r
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document.write( "Alan is a plumber, and his coworker Bruce is an electrician. Alan charges customers a fee of $40 just to come to their houses and then $3 per minute that he is there. Bruce also charges a fee of $60 for a home visit, plus an additional $1 per minute. Last week the coworkers went to a job site together, spent the same amount of time working, and earned the same amount. How much did each one earn?
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Algebra.Com's Answer #635136 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Alan is a plumber, and his coworker Bruce is an electrician. \n" ); document.write( ": \n" ); document.write( "Let m = no. minutes worked \n" ); document.write( "write a cost equation for each man \n" ); document.write( ": \n" ); document.write( " Alan charges customers a fee of $40 just to come to their houses and then $3 per minute that he is there. \n" ); document.write( "C(m) = 3m + 40 \n" ); document.write( ": \n" ); document.write( " Bruce also charges a fee of $60 for a home visit, plus an additional $1 per minute. \n" ); document.write( "C(m) = 1m + 60 \n" ); document.write( ": \n" ); document.write( "Last week the coworkers went to a job site together, spent the same amount of time working, and earned the same amount. \n" ); document.write( " How much did each one earn? \n" ); document.write( "The cost for each is equal, therefore find the number of minutes they worked \n" ); document.write( "3m + 40 = m + 60 \n" ); document.write( "3m - m = 60 - 40 \n" ); document.write( "2m = 20 \n" ); document.write( "m = 20/2 \n" ); document.write( "m = 10 min \n" ); document.write( ": \n" ); document.write( "Alan: \n" ); document.write( "C(m) = 3(10) + 40 \n" ); document.write( "C(m) = 30 + 40 \n" ); document.write( "C(m) = $70 \n" ); document.write( "Bruce: \n" ); document.write( "C(m) = 1(10) + 60 \n" ); document.write( "C(m) = $70 \n" ); document.write( ": \n" ); document.write( "We can say they both earn $70 if the both work 10 min \n" ); document.write( " |