document.write( "Question 262851: please check my answer:a plumber gave an estimate for the renovation of a kitchen.her hourly pay is 24.$per hour and the plumbing parts will cost 60.$.if her total estimate is 228.$,how many hours does she expect the job to take? my answer is 7 hours \n" ); document.write( "
Algebra.Com's Answer #193618 by dabanfield(803) ![]() You can put this solution on YOUR website! please check my answer:a plumber gave an estimate for the renovation of a kitchen.her hourly pay is 24.$per hour and the plumbing parts will cost 60.$.if her total estimate is 228.$,how many hours does she expect the job to take? my answer is 7 hours\r \n" ); document.write( "\n" ); document.write( "The total cost of the job is fixed cost + variable cost.\r \n" ); document.write( "\n" ); document.write( "If the number of hours worked is w then we have:\r \n" ); document.write( "\n" ); document.write( "Total Cost = 60 (fixed cost) + w*24 (variable cost).\r \n" ); document.write( "\n" ); document.write( "So we have:\r \n" ); document.write( "\n" ); document.write( "228 = 60 + 24*w \n" ); document.write( "24w = 168 \n" ); document.write( "w = 7\r \n" ); document.write( "\n" ); document.write( "You are correct :) \n" ); document.write( " |