document.write( "Question 387153: It takes jerry twice as long as sue to clean up the kitchen. if sure can clean up the kitchen in 1/3 hour, how long would it take to clean up the kitchen if she works together with jerry? \n" ); document.write( "
Algebra.Com's Answer #275178 by lwsshak3(11628) ![]() You can put this solution on YOUR website! sue can clean the kitchen alone in 1/3 hr or 20 minutes \n" ); document.write( "jerry can clean the kitchen alone twice as long as sue =40 minutes \n" ); document.write( "working together they can clean the kitchen in x minutes\r \n" ); document.write( "\n" ); document.write( "sue's rate + jerry rate = the rate both working together\r \n" ); document.write( "\n" ); document.write( "1/20 +1/40 =1/x \n" ); document.write( "2/40 +1/40 =1/x \n" ); document.write( "3/40 =1/x \n" ); document.write( "x =40/3 =13.33 minutes\r \n" ); document.write( "\n" ); document.write( "ans: working together sue and jerry can clean he kitchen in 13.33 minues \n" ); document.write( " |