document.write( "Question 635718: Radical Expression..I need assistance with this please..thanks so much..\r
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Algebra.Com's Answer #400500 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "If Mary can paint one room in 100 minutes, and Jake can paint one room in 150 minutes, 
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document.write( "how long  will it take if they work together?
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document.write( "Question states*** PER min Key
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document.write( " 1/100 + 1/150 = 1/x   |Multiplying thru by 300x so as all denominators = 1
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document.write( " 3x + 2x = 300
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document.write( "    5x = 300
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document.write( "     x = 60min or 1 hr together \n" );
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