document.write( "Question 141972: there are 20 people in a room. 8 of them are wearing socks and 13 of them are wearing shoes. 4 people are wearing both.how many are barefooted? \n" ); document.write( "
Algebra.Com's Answer #103394 by stanbon(75887)\"\" \"About 
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there are 20 people in a room. 8 of them are wearing socks and 13 of them are wearing shoes. 4 people are wearing both.how many are barefooted?
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\n" ); document.write( "Draw a Venn diagram with two overlapping circles.
\n" ); document.write( "Call one circle Socks and the other Shoes.
\n" ); document.write( "Put a 4 in the overlap
\n" ); document.write( "Put a 4 in the Socks that is not in the overlap
\n" ); document.write( "Put a 9 in the Shoes that is not in the overlap
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\n" ); document.write( "The circles now contain 4+4+9 = 17.
\n" ); document.write( "So, there are 3 who are barefooted.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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