document.write( "Question 1111602: mr chase purchased 300 adult and child tickets to the fair for a total of $4140.each adult ticket cost $15 and each child ticket cost $12.how many child tickets did he buy? \n" ); document.write( "

Algebra.Com's Answer #726590 by mananth(16946) $\"\"$ $\"About$

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Adult x tickets
\n" ); document.write( "children y tickets
\n" ); document.write( "Equation for tickets
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\n" ); document.write( "1 x + 1 y = 300 .............1
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\n" ); document.write( "Equation for amount spent
\n" ); document.write( "15 x + 12.00 y = 4140 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -12.00
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-12.00 x -12.00 y = -3600.00
\n" ); document.write( "15.00 + 12.00 y = 4140.00
\n" ); document.write( "Add the two equations
\n" ); document.write( "3 x = 540.00
\n" ); document.write( "/ 3
\n" ); document.write( "x = 180
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "180.00 x + 1.00 y = 300.00
\n" ); document.write( "180.00 + 1.00 y = 300.00
\n" ); document.write( " 1.00 y = 120.00
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\n" ); document.write( "Adult 180.00 tickets
\n" ); document.write( "children 120 tickets
\n" ); document.write( "m.ananth@hotmail.ca
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