document.write( "Question 591963: The OFY student council voted to go to a baseball game for their annual trip. They bought 30 tickets. Some of the tickets cost $21 each, and some cost $27 each. The total cost of all the tickets was $696. How many of the $21 tickets did they buy?......PLEASE HELP \n" ); document.write( "
Algebra.Com's Answer #375796 by John10(297)\"\" \"About 
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The OFY student council voted to go to a baseball game for their annual trip. They bought 30 tickets. Some of the tickets cost $21 each, and some cost $27 each. The total cost of all the tickets was $696. How many of the $21 tickets did they buy?
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\n" ); document.write( "Hints:\r
\n" ); document.write( "\n" ); document.write( "Let's x be the number of $21 tickets and y is the number of $27 tickets.\r
\n" ); document.write( "\n" ); document.write( "We will have a linear system of two equations:\r
\n" ); document.write( "\n" ); document.write( "Total bought tickets: x + y = 30\r
\n" ); document.write( "\n" ); document.write( "Total cost: 21x + 27y = 696\r
\n" ); document.write( "\n" ); document.write( "Solve the system to find x and y.\r
\n" ); document.write( "\n" ); document.write( "John10:)
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