document.write( "Question 463840: a small company finds the probability of a single phone being engaged is 0.8
\n" ); document.write( "the company wants to improve thier service to customers by providing sufficient phones so that the probability of a phone being engaged is less than 0.5.
\n" ); document.write( "how many phones do they need ?
\n" ); document.write( "HELPPPPP !!!!!!!!1
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Algebra.Com's Answer #317743 by sudhanshu_kmr(1152)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "8 out of 10 are being engaged.\r
\n" ); document.write( "\n" ); document.write( "8*2 = 16 \r
\n" ); document.write( "\n" ); document.write( "10-6 = 6 i.e 60% of 10.\r
\n" ); document.write( "\n" ); document.write( "60% more phones are needed.\r
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