document.write( "Question 385533: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? \n" ); document.write( "

Algebra.Com's Answer #272760 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Let x represent the time it will take them together
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document.write( "Question States:  Per hour being the Equalizer
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document.write( " 1/4 + 1/6 = 1/x  Mulitplying each term by 12x so as all denominators = 1
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document.write( "  3x + 2x = 12
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document.write( "   5x = 12
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document.write( "    x = 12/5 = 2.4 hr or 2hr and 24min together.\r
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document.write( "CHECKING our Answer
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document.write( "  3/12 + 2/12 = 5/12 = 1/(12/5) \n" );
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