document.write( "Question 1007826: John's school is selling tickets to a play. On the first day of ticket sales the school sold 10 senior citizen tickets
\n" );
document.write( "and 3 student tickets for a total of $57. The school took in $114 on the second day by selling 5 senior citizen
\n" );
document.write( "tickets and 11 student tickets. What is the price each of one senior citizen ticket and one student ticket? \n" );
document.write( "
Algebra.Com's Answer #623687 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Let the prices of senior and student tickets be x and y. Then we have \n" ); document.write( "10x + 3y = 57 and \n" ); document.write( "5x + 11y = 114 \n" ); document.write( "Now multiply this second equation by two and subtract from the first and we get \n" ); document.write( "10x + 3y = 57 \n" ); document.write( "-(10x + 22y = 228) \n" ); document.write( "--------------------- \n" ); document.write( "-19y = - 171 \n" ); document.write( "y = 9 dollar student tickets \n" ); document.write( "Substituting back into the first equation gives \n" ); document.write( "10x + 3(9) = 57 \n" ); document.write( "10x + 27 = 57 \n" ); document.write( "10x = 30 \n" ); document.write( "x = 3 dollar senior tix \n" ); document.write( " \n" ); document.write( " |