document.write( "Question 887692: maria can paint a kitchen in 5 hours and charles can paint the same kitchen in 4 hours. how ing would it take for both working together to paint the kitchen. \n" ); document.write( "
Algebra.Com's Answer #536830 by Edwin McCravy(20054)\"\" \"About 
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maria can paint a kitchen in 5 hours and charles can paint the same kitchen in 4 hours. how ing would it take for both working together to paint the kitchen. \r
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document.write( "Let x be the answer.  Then\r\n" );
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document.write( "\"matrix%281%2C2%2C1%2Ckitchen%29%2Fmatrix%281%2C2%2C5%2Chours%29\"\"%22%22%2B%22%22\"\"matrix%281%2C2%2C1%2Ckitchen%29%2Fmatrix%281%2C2%2C4%2Chours%29\" \"%22%22=%22%22\" \"matrix%281%2C2%2C1%2Ckitchen%29%2Fmatrix%281%2C2%2Cx%2Chours%29\"\r\n" );
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document.write( "    \r\n" );
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document.write( "Multiply through by LCD = 20x\r\n" );
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document.write( "    \"matrix%281%2C7%2C++++4x%2C%22%22%2B%22%22%2C5x%2C%22%22%2C%22%22=%22%22%2C%22%22%2C20%29\"\r\n" );
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document.write( "    \"matrix%281%2C5%2C++++9x%2C%22%22%2C%22%22=%22%22%2C%22%22%2C20%29\"\r\n" );
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document.write( "    \"matrix%281%2C5%2C++++x%2C%22%22%2C%22%22=%22%22%2C%22%22%2C20%2F9%29\"\r\n" );
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document.write( "    \"matrix%281%2C6%2C++++x%2C%22%22%2C%22%22=%22%22%2C%22%22%2C2%262%2F9%2Chours%29\"\r\n" );
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document.write( "Edwin
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