document.write( "Question 620173: admission prices for a football game were $6 for adults and $2 dollars for children the total value of tickets sold was $2528 and 454 tickets were sold. how many adults and children attended the game? \n" ); document.write( "
Algebra.Com's Answer #389964 by dragonwalker(73)![]() ![]() ![]() You can put this solution on YOUR website! You need to find the mean cost of a ticket:\r \n" ); document.write( "\n" ); document.write( "2528/454 = $5.568\r \n" ); document.write( "\n" ); document.write( "You want to know how many children's tickets were bought for each single adult ticket to give such a mean, so let us say that for every one adult ticket at $6 't' children's tickets were bought at $2.\r \n" ); document.write( "\n" ); document.write( "To find the mean we add these together and divide by the number (t + 1) (i.e. number of children's tickets to every one adult plus the one adult ticket). This formula will equal the mean cost so:\r \n" ); document.write( "\n" ); document.write( "2t + 6/(t+1) = 5.568\r \n" ); document.write( "\n" ); document.write( "solve for t:\r \n" ); document.write( "\n" ); document.write( "2t + 6 = 5.568 (t+1) \n" ); document.write( "2t + 6 = 5.568t + 5.568 \n" ); document.write( "6 - 5.568 = 5.568t - 2t \n" ); document.write( "0.432 = 3.568t \n" ); document.write( "t = 0.432/3.568 \n" ); document.write( "t = 0.121\r \n" ); document.write( "\n" ); document.write( "so for every adult ticket, 0.121 children's tickets were sold. So now we need to find how many of each were sold.\r \n" ); document.write( "\n" ); document.write( "So let us call the total number of adult tickets 'T' so 0.121T children's tickets are sold. Which would equal the total number 454\r \n" ); document.write( "\n" ); document.write( "So: \n" ); document.write( "T + 0.121T = 454 \n" ); document.write( "1.121T = 454 \n" ); document.write( "T = 454/1.121 \n" ); document.write( "T = 405\r \n" ); document.write( "\n" ); document.write( "so 405 adult tickets were sold and therefore 405 x 0.121 = 49 children's tickets.\r \n" ); document.write( "\n" ); document.write( "To check multiply the number of tickets by their respective costs and add together:\r \n" ); document.write( "\n" ); document.write( "(405x6) + (49x2) = 2430 + 98 \n" ); document.write( "=$2528 !!! \n" ); document.write( " |