document.write( "Question 566545: Tickets for the father and son breakfast were 2 dollars for fathers and 1.50 dollars for sons. If a total of of 75 tickets were sold for 127.50 dollars, how many fathers and how many sons attended the breakfast?
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Algebra.Com's Answer #366255 by mananth(16946)\"\" \"About 
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Fathers x
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\n" ); document.write( "1 x + 1 y = 75 .............1
\n" ); document.write( "2 x + 1.5 y = 127.5 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -1.5
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-1.5 x -1.5 y = -112.5
\n" ); document.write( "2 x 1.5 y = 127.5
\n" ); document.write( "Add the two equations
\n" ); document.write( "0.5 x = 15
\n" ); document.write( "/ 0.5
\n" ); document.write( "x = 30
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1 x + 1 y = 75
\n" ); document.write( "30 + 1 y = 75
\n" ); document.write( " 1 y = 75 -30
\n" ); document.write( " 1 y = 45
\n" ); document.write( " y = 45
\n" ); document.write( "Fathers 30
\n" ); document.write( "Sons 45
\n" ); document.write( "m.ananth@hotmail.ca
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