document.write( "Question 1203093: James went to the theatre to watch a concert with his family. The theatre had 4270 seats. There were 60% fewer $50-seats than $30-seats. 50% of the $30-seats and some $50-seats were sold. A total of $47 500 was collected. How many seats were unsold? \n" ); document.write( "
Algebra.Com's Answer #838365 by Theo(13342) You can put this solution on YOUR website! this is what i get.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "A = the number of 30 dollar seats available. \n" ); document.write( "B = the number of 50 dollar seats available. \n" ); document.write( "the total number of seats available is 4270. \n" ); document.write( "the equation for that is A + B = 4270\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "there were 60% fewer 50 dollar seats available than 30 dollar seats. \n" ); document.write( "the equation for that is B = A - .6 * A = .4 * A. \n" ); document.write( "replace B with .4 * A in the equation of A + B = 4270 to get: \n" ); document.write( "A + .4 * A = 4270 \n" ); document.write( "combine like terms to get: \n" ); document.write( "1.4 * A = 4270 \n" ); document.write( "solve for A to get: \n" ); document.write( "A = 4270 / 1.4 = 3050 thirty dollar seats available. \n" ); document.write( "this means that there are 4270 - 3050 = 1220 fifty dollar seats available.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "50% of the 30 dollar seats and some of the 50 dollar seats were sold for a total revenue of 47500. \n" ); document.write( "50% times 3050 = 1525 thirty dollars seats that were sold. \n" ); document.write( "let x equal the number of 50 dollar seats that were sold and the equation for the total revenue becomes: \n" ); document.write( "1525 * 30 + 50 * x = 47500. \n" ); document.write( "simplify to get 45750 + 50 * x = 47500 \n" ); document.write( "subtract 45750 from both sides of this equation to get 50 * x = 1750 \n" ); document.write( "solve for x to get x = 35.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "1525 thirty dollar seats were sold and 35 fifty dollar seats were sold for a total revenue of 1525 * 30 + 35 * 50 = 47500.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the number of seats that were unsold was 5050 minus 1525 = 1525 thirty dollar seats and 1220 - 35 = 1185 fifty dollar seats for a total of 2710 seats that were unsold.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that shoud be your solution.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |