document.write( "Question 268358: ata high school basketball game, 400 tickets are sold. adult tickets cost 5 dollars and student tickets cost 2.50. if the totla amount collected was 1375 how many student tickets were sold? \n" ); document.write( "
Algebra.Com's Answer #196681 by unlockmath(1688)![]() ![]() You can put this solution on YOUR website! Hello, \n" ); document.write( "We can set up two equations. Let x be the adult tickets and y for the student tickets. \n" ); document.write( "5x+2.5y=1375 \n" ); document.write( "x+y=400 \n" ); document.write( "Now multiply the second equation by -5 to get: \n" ); document.write( "-5x-5y=-2000 Now add this to the other equation: \n" ); document.write( "5x+2.5=1375 This we give us: \n" ); document.write( "-2.5y=-625 Divide both sides by -2.5 to get: \n" ); document.write( "y=250 \n" ); document.write( "There we go 250 student tickets were sold. \n" ); document.write( "You can plug in the answer and see if it works. \n" ); document.write( "Make sense? \n" ); document.write( "RJ \n" ); document.write( "You might check out a book I wrote at: \n" ); document.write( "www.math-unlock.com \n" ); document.write( " |