document.write( "Question 698377: If 70% use comany A and 60% use company B, how many use both?
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Algebra.Com's Answer #430608 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
You can't say for sure. Is a range.
\n" ); document.write( "If the same folks in the 60% are in the 70%, then as many as 60% can use both.
\n" ); document.write( "However, there are 30% of the folks that do NOT use A. If all of them use B, then there are only 30% that use both. So the range is
\n" ); document.write( "30% <= x <= 60%\r
\n" ); document.write( "\n" ); document.write( "make sense?
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