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
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document.write( "note: this question was printed and given as a handout in class so i do not know the book reference\r
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document.write( "thank you \n" );
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Algebra.Com's Answer #145863 by stanbon(75887)![]() ![]() ![]() 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? \n" ); document.write( "----------------- \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\" \n" ); document.write( "--- \n" ); document.write( "Then average cost per individula is C/n = 8 \n" ); document.write( "----------------------------- \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 \n" ); document.write( "---------------------- \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) \n" ); document.write( "========================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |