document.write( "Question 219587: if sally paints a house in 4 hours and john paints the same house in 6 hours how long will it take for them both to paint the house \n" ); document.write( "

Algebra.Com's Answer #165113 by solver91311(24713) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "Let

represent the number of hours it takes Sally to paint the house. Let

represent the number of hours it takes John to paint the house.\r
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\n" ); document.write( "\n" ); document.write( "If Sally can paint the house in

hours, she can paint

of the house in one hour. Likewise, John can paint

of the house in one hour. So given both working together, the house will get painted at a rate of:\r
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of the house per hour.\r
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\n" ); document.write( "\n" ); document.write( "Therefore the entire house will be painted in:\r
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hours.\r
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\n" ); document.write( "\n" ); document.write( "Just plug in the values you were given and do the arithmetic. \r
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\n" ); document.write( "\n" ); document.write( "John
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