document.write( "Question 485610: I am trying to help my son with his algebra and need some help! I have two I am stuck on can you please help. I need an equation to model and solve. Below are the questions.\r
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document.write( "1) Attendance at a ball game was 400 people. Student tickets cost $2 and adult tickets $3. $1050 was collected in ticket sales, how many of each were sold.\r
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document.write( "2) Find two consecutive integers such that the sum of the first and three times the second is 55.\r
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document.write( "Thank you,
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document.write( "Dwayne \n" );
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Algebra.Com's Answer #332114 by Theo(13342)![]() ![]() You can put this solution on YOUR website! 400 people \n" ); document.write( "student costs $2.00 apiece \n" ); document.write( "Adult costs $3.000 apiece. \n" ); document.write( "total collected was $1050. \n" ); document.write( "x = number of student tickets \n" ); document.write( "y = number of adult tickets. \n" ); document.write( "x + y = 400 \n" ); document.write( "2x + 3y = 1050 \n" ); document.write( "solve simultaneously. \n" ); document.write( "multiply first equation by 2 to get: \n" ); document.write( "2x + 2y = 800 \n" ); document.write( "2x + 3y = 1050 \n" ); document.write( "subtract first equation from second equation to get: \n" ); document.write( "y = 250 \n" ); document.write( "since x + y = 400, then x = 150. \n" ); document.write( "2*150 + 3*250 = 300 + 750 = 1050. \n" ); document.write( "number of child tickets is 150 \n" ); document.write( "number of adult tickets is 250\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "integers are x and x+1 \n" ); document.write( "sum of first and 3 times second is 55. \n" ); document.write( "x + 3(x+1) = 55 \n" ); document.write( "x + 3x + 3 = 55 \n" ); document.write( "4x + 3 = 55 \n" ); document.write( "4x = 52 \n" ); document.write( "x = 13 \n" ); document.write( "x+1 = 14 \n" ); document.write( "13 + 3 * 14 = 13 + 42 = 55.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |