document.write( "Question 635160: Sheila can map their floor in 30 min and her sister Bunny in 45 min.How long it take them to finish the job if they work together? \n" ); document.write( "
Algebra.Com's Answer #400182 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! 1/45+1/30=1/x \n" ); document.write( "(30+45)/45*30=1/x \n" ); document.write( "75/1350=1/x \n" ); document.write( "75x=1350 \n" ); document.write( "x=1350/75 \n" ); document.write( "x=18 min. when working together.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |