document.write( "Question 849260: John and Cara, working together, can clean the house in 9 hours. Working alone, Cara takes three times as long as John. How long does it take John to clean the house alone? \n" ); document.write( "
Algebra.Com's Answer #511498 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 9/j+9/3j=1 \n" ); document.write( "9/j+3/j=1 \n" ); document.write( "12/j=1 \n" ); document.write( "j=12 \n" ); document.write( "c=36 \n" ); document.write( "check \n" ); document.write( "in 9 hours john does 3/4 of the job and cara does 1/4 \n" ); document.write( "9/12+9/36=1 \n" ); document.write( "3/4+1/4=1 \n" ); document.write( "ok\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |