document.write( "Question 149129: A carpenter charges a set fee for a job in addition to an hourly charge. He charges first customer $150 for a 3 hr job. He charges another customer $180 for a 6 hr. job. How much would he charge for a 9 hr. job? \n" ); document.write( "
Algebra.Com's Answer #109401 by mangopeeler07(462)![]() ![]() ![]() You can put this solution on YOUR website! $150 for a 3 hr job. $180 for a 6 hr. job. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Jobs differ by three hours and thirty dollars, so ten dollars an hour.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Base price=price for three hours minus ten per hour \n" ); document.write( "Base price=150-10(3) \n" ); document.write( "150-30 \n" ); document.write( "Base price=120\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "10 dollars an hour, so total price= \n" ); document.write( "base price plus price per hour times the hours\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "total price of nine hours= \n" ); document.write( "120+10(9) \n" ); document.write( "120+90 \n" ); document.write( "210\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Price for nine hours: \n" ); document.write( "$210 \n" ); document.write( " |