document.write( "Question 436727: A survey of 900 Amercians found that 680 had confidence in the economy. If 80% of the women and 70% of the men surveyed expressed confidence in the economy, then how many women were surveyed? \n" ); document.write( "
Algebra.Com's Answer #307395 by jorel1380(3719)\"\" \"About 
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x+y=900
\n" ); document.write( ".80x+.70y=680
\n" ); document.write( "8x+7y=6800
\n" ); document.write( "7x+7y=6300
\n" ); document.write( "x=500
\n" ); document.write( "y=400
\n" ); document.write( "500 women were surveyed, as were 400 men..
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