document.write( "Question 908560: Patrice, by himself, cant paint four rooms in 10 hours. If he hires April to help, they can do the same job together in 6 hours. If he lets April work alone, how long will it take her to paint four rooms? \n" ); document.write( "
Algebra.Com's Answer #551106 by richwmiller(17219)\"\" \"About 
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rate for A alone 10
\n" ); document.write( "rate for A & B together 6
\n" ); document.write( "1/a+1/b=1/x
\n" ); document.write( "1/10+1/b=1/6
\n" ); document.write( "1/b=1/6-1/10
\n" ); document.write( "1/b=10/60-6/60
\n" ); document.write( "1/b=4/60
\n" ); document.write( "1/b=1/15
\n" ); document.write( "b=15
\n" ); document.write( "rate for B alone 15
\n" ); document.write( "check
\n" ); document.write( "1/10+1/15=1/6
\n" ); document.write( "15/150+10/150=1/6
\n" ); document.write( "25/150=1/6
\n" ); document.write( "ok
\n" ); document.write( "
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