document.write( "Question 71159: six painters can paint 10 homes in 9 weeks. because of time constraints, the homes need to be finished in 2 weeks. how many ADDITIONAL painters must be hired to finish painting the 10 homes in only two weeks? \n" ); document.write( "
Algebra.Com's Answer #50883 by ptaylor(2198)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Let x=number of ADDITIONAL painters needed to finish painting the 10 homes in 2 weeks \n" ); document.write( "Now we know that: \n" ); document.write( "If six painters can paint 10 homes in 9 weeks, then \n" ); document.write( "six painters can paint 10/9 homes per week and, in two weeks, six painters can paint 20/9 homes leaving only (90/9-20/9=70/9) homes to paint by the ADDITIONAL painters. \n" ); document.write( "Also, one painter can paint (10/9)(1/6) or 10/54 homes per week and in two weeks, one painter can paint 20/54 or 10/27 homes. So our equation to solve is\r \n" ); document.write( "\n" ); document.write( "(10/27)(x)=70/9 multiply both sides by the LCM (27)\r \n" ); document.write( "\n" ); document.write( "10x=210 divide both sides by 10\r \n" ); document.write( "\n" ); document.write( "x=21---------------ADDITIONAL painters needed to finish the job in 2 weeks\r \n" ); document.write( "\n" ); document.write( "Another way to look at this problem: \n" ); document.write( "If six painters can paint 10 homes in 9 weeks, then one painter can paint 10 homes in (6)(9) or 54 weeks and x painters can paint 10 homes in 54/x weeks.\r \n" ); document.write( "\n" ); document.write( "So our equation to solve is:\r \n" ); document.write( "\n" ); document.write( "54/x=2 multiply both sides by x\r \n" ); document.write( "\n" ); document.write( "54=2x divide both sides by 2\r \n" ); document.write( "\n" ); document.write( "x=27---------------------total required to finish in 2 weeks\r \n" ); document.write( "\n" ); document.write( "27-6=21--------------------ADDITIONAL painters required\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hope this helps----ptaylor\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |