document.write( "Question 176035: Company A charges $45 for the first half hour of work and $23 for each additional half hour of work. Company B charges $35 for the first half hour of work and $28 for each additional hour of work. For how many hours of work will the companies charge the same amount? \n" ); document.write( "
Algebra.Com's Answer #131158 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! equation for : remember t = each 1/2 hour of time. \n" ); document.write( ": \n" ); document.write( "company A: 23t+45 \n" ); document.write( ": \n" ); document.write( "company B: 28t+35 \n" ); document.write( ": \n" ); document.write( "we are looking for company A = company B \n" ); document.write( ": \n" ); document.write( "23t+45=28t+35 \n" ); document.write( ": \n" ); document.write( "5t=10 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "so that is 2(1/2hrs) of time which equals 1 hour. So for 1 hours work the 2 companies will charge the same \n" ); document.write( " |