document.write( "Question 397455: Joan can shovel a certain driveway in 50 minutes. If Mary can shovel the same driveway in 20 minutes, how long will it take them, to the nearest minute, to shovel the driveway if they work together. \n" ); document.write( "

Algebra.Com's Answer #281673 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Let x represent the minutes it takes together to shovel the driveway
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document.write( "question states***per minute being the equalizer
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document.write( "  1/50 + 1/20 = 1/x  |Multiplying thru with 100x so as all denominators= 1
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document.write( "  2x + 5x = 100
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document.write( "     7x = 100
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document.write( "      x = 100/7 = 14.2857 min \n" );
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