document.write( "Question 185026: Teacher generated question, not from a textbook.\r
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document.write( "You are in charge of setting up a room for an awards banquet at your school. A total of 122 people will attend the banquet. The school has tables that seat either 8 or 10 people. No empty seats are allowed. How many of each size table will you need to use to make sure everyone has a seat?\r
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document.write( "Can get to \"8x + 10y = 122\" but need to develop second equation to solve using elimination or substitution.\r
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document.write( "Thank you. \n" );
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Algebra.Com's Answer #138827 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Teacher generated question, not from a textbook. \n" ); document.write( "You are in charge of setting up a room for an awards banquet at your school. \n" ); document.write( " A total of 122 people will attend the banquet. The school has tables that seat \n" ); document.write( " either 8 or 10 people. No empty seats are allowed. How many of each size table \n" ); document.write( " will you need to use to make sure everyone has a seat? \n" ); document.write( "Can get to \"8x + 10y = 122\" but need to develop second equation to solve \n" ); document.write( " using elimination or substitution. \n" ); document.write( ": \n" ); document.write( "That's the only equation you will get from the information given, however since \n" ); document.write( "there are no empty seats, x and y have to be integers that will give 122. \n" ); document.write( ": \n" ); document.write( "simplify the equation by dividing by 2, re-write it: \n" ); document.write( "4x + 5y = 61 \n" ); document.write( "5y = 61 - 4x \n" ); document.write( "y = \n" ); document.write( "choose a value for x and see if y is an integer, if it is that is a one solution \n" ); document.write( "I found there are three solutions \n" ); document.write( "x=4 \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( "y = 9; (32 + 90 = 122) \n" ); document.write( "and \n" ); document.write( "x = 9 \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( "y = 5; (72 + 40 = 122) \n" ); document.write( "and one more \n" ); document.write( "x=14 \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( "y = 1; (112 +10 = 122)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |