document.write( "Question 174173: a theather sold 478 tickets for a play . thickets cost $20 for adults and $13 for senior citizens.,if the total sreceips were $6970, how many senior citizen tickets were sold? \n" ); document.write( "
Algebra.Com's Answer #129104 by stanbon(75887)\"\" \"About 
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a theather sold 478 tickets for a play . thickets cost $20 for adults and $13 for senior citizens.,if the total receipts were $6970, how many senior citizen tickets were sold?
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\n" ); document.write( "Quantity Equation: a + s = 478
\n" ); document.write( "Value Equation: 20a + 13s = 6970
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\n" ); document.write( "20a + 20s = 9560
\n" ); document.write( "20a + 13s = 6970
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\n" ); document.write( "Subtract 2nd from 1st to get:
\n" ); document.write( "7s = 2590
\n" ); document.write( "370
\n" ); document.write( "s = 370 (# of senior tickets sold)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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