document.write( "Question 883383: Pedro can do a piece work in 4 days,while Alan can do a piece of work in 5 days. In how many days can both finish the work, if they work together? \n" ); document.write( "

Algebra.Com's Answer #533458 by Edwin McCravy(20056) $\"\"$ $\"About$

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Pedro can do a piece work in 4 days,
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document.write( "So Pedro's rate is \r\n" );
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\n" ); document.write( "while Alan can do a piece of work in 5 days,
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document.write( "So Alan's rate is \r\n" );
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\n" ); document.write( "In how many days can both finish the work, if they work together?
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document.write( "Let that be x days.\r\n" );
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document.write( "So their combined rate is \r\n" );
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document.write( "The equation comes from:\r\n" );
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document.write( "  \r\n" );
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document.write( "  \r\n" );
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document.write( "Multiply through by LCD of 20x\r\n" );
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document.write( "5x + 4x = 20\r\n" );
document.write( "     9x = 20\r\n" );
document.write( "      x =  or  days\r\n" );
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document.write( "Edwin

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