document.write( "Question 682675: n a recent survey of 100 women, the following information was gathered.
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document.write( "38 use shampoo A.
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document.write( "39 use shampoo B.
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document.write( "31 use shampoo C.
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document.write( "8 use shampoos A and B.
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document.write( "6 use shampoos A and C.
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document.write( "2 use shampoos B and C.
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document.write( "1 use all three.
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document.write( "Use the figure to answer the question in the problem.\r
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document.write( "How many are using shampoo A only (Region I)?
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document.write( " women \n" );
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Algebra.Com's Answer #423272 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "8 use both A and B, but that includes the 1 that uses all three, hence 7 use A and B only.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6 use both A and C, but that includes the 1 that uses all three, hence 5 use A and C only.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "38 use A, but that includes the 7 that use A and B only, the 5 that use A and C only, and the 1 that uses all three, so 38 minus 7 minus 5 minus 1 = 25 use A only.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( "Egw to Beta kai to Sigma \n" ); document.write( "My calculator said it, I believe it, that settles it \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |