document.write( "Question 194386: a get together party charged at $8/head became $9/head because 8 will not attend the party. how many people attended the party? \r
\n" ); document.write( "\n" ); document.write( "note: this question was printed and given as a handout in class so i do not know the book reference\r
\n" ); document.write( "\n" ); document.write( "thank you
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Algebra.Com's Answer #145863 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
a get together party charged at $8/head became $9/head because 8 will not attend the party. how many people attended the party?
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\n" ); document.write( "Original Plan:
\n" ); document.write( "Let number in the party be \"n\":
\n" ); document.write( "Let total cost of the party be \"C\"
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\n" ); document.write( "Then average cost per individula is C/n = 8
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\n" ); document.write( "New Plan:
\n" ); document.write( "Number in the party is \"n-8\"
\n" ); document.write( "Total cost of the party is still \"C\".
\n" ); document.write( "Then average cost per individual if C/(n-8) = 9
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\n" ); document.write( "Equation:
\n" ); document.write( "From original you get C = 8n
\n" ); document.write( "Substitute into new plan to solve for \"n\":
\n" ); document.write( "8n/(n-8) = 9
\n" ); document.write( "8n = 9n-72
\n" ); document.write( "n = 72 (original number in the party)
\n" ); document.write( "n-8 = 64 (number that actually attended the party)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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