document.write( "Question 910029: The Theatre Club sold a total of 415 tickets. The adult tickets cost $5 and the children's tickets cost $3. If $1,615 was collected, how many adult tickets were sold? \n" ); document.write( "
Algebra.Com's Answer #552210 by richwmiller(17219)\"\" \"About 
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a+c=415,
\n" ); document.write( "5*a+3*c=1615
\n" ); document.write( "a=415-c
\n" ); document.write( "5*(415-c)+3*c=1615
\n" ); document.write( "2075-5c+3*c=1615
\n" ); document.write( "-2*c=-460
\n" ); document.write( "c=230
\n" ); document.write( "a=415-c
\n" ); document.write( "a=185 at $5 and c=230 at $3
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\n" ); document.write( "185+230=415
\n" ); document.write( "5*a+3*c=1615
\n" ); document.write( "5*185+3*230=1615
\n" ); document.write( "925+690=1615
\n" ); document.write( "1615=1615
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