document.write( "Question 1034089: If 126 people attend a concert and tickets for adults cost $3 while tickets for children cost $2.25 and total receipts for the concert was $343.5, how many of each went to the concert?
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Algebra.Com's Answer #648711 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "A=adults; C=children \n" ); document.write( ". \n" ); document.write( "A+C=126 \n" ); document.write( "A=126-C . Use this to substitute for A below \n" ); document.write( ". \n" ); document.write( "3A+2.25C=343.5 . Substitute for A (from above) \n" ); document.write( ". \n" ); document.write( "3(126-C)+2.25C=343.5 \n" ); document.write( "378-3C+2.25C=343.5 \n" ); document.write( "-0.75C=-34.5 \n" ); document.write( "C=46 \n" ); document.write( ". \n" ); document.write( "46 Children attended \n" ); document.write( ". \n" ); document.write( "A=126-C=126-46=80 \n" ); document.write( ". \n" ); document.write( "80 Adults attended \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( ". \n" ); document.write( "3A+2.25C=343.5 \n" ); document.write( "3(80)+46(2.25)=343.5 \n" ); document.write( "240+103.5=343.5 \n" ); document.write( "343.5=343.5\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |