document.write( "Question 1044282: Together, Fay and Rob can paint a house in 3 days. It will take Rob 3 times as long as it will take Fay to do it alone. How long will take each of them to do it alone? \n" ); document.write( "
Algebra.Com's Answer #659560 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! Fay and Rob's rate working together is: \n" ); document.write( "[ 1 house painted ] / [ 3 days ] = \n" ); document.write( "----------------------------------- \n" ); document.write( "Let \n" ); document.write( "Fay's rate working alone is: \n" ); document.write( "[ 1 house painted ] / [ t days ] = \n" ); document.write( "----------------------------------- \n" ); document.write( "Let \n" ); document.write( "Rob's rate working alone is: \n" ); document.write( "[ 1 house painted ] / [ 3t days ] = \n" ); document.write( "------------------------------------ \n" ); document.write( "Add their rates of painting to get their rate working together \n" ); document.write( " \n" ); document.write( "Multiply both sides by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "and \n" ); document.write( " \n" ); document.write( "------------------ \n" ); document.write( "Fay can paint 1 house in 4 days \n" ); document.write( "Rob can paiont 1 house in 12 days \n" ); document.write( "---------------------------- \n" ); document.write( "check: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "OK \n" ); document.write( " |