document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321137>Question 321137</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At last week’s hockey game involving  Waterloo Blueberries, the price of a<BR>\n" );
document.write( "platinum ticket was $25, the price of a gold ticket was $10, the price of a silver ticket was $5, and the price of a bronze ticket was $1.\r<BR>\n" );
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document.write( "(a) Jim buys 5 platinum tickets, 2 gold tickets and 3 silver tickets. Determine the average cost of the tickets that Jim buys. \r<BR>\n" );
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document.write( "(b) Mike buys 8 tickets whose average cost is $12. He then buys five more platinum tickets. What is the new average cost of the tickets that he has bought? \r<BR>\n" );
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document.write( "(c) Ophelia buys 10 tickets with an average cost of $14. Suppose that she buys n more platinum tickets. The new average cost of the tickets that she has bought is $20. What is the value of n? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #229969 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=229969\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At last week’s hockey game involving  Waterloo Blueberries, the price of a<BR>\n" );
document.write( "platinum ticket was $25, the price of a gold ticket was $10, the price of a silver ticket was $5, and the price of a bronze ticket was $1.<BR>\n" );
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document.write( "(a) Jim buys 5 platinum tickets,5*25= 125<BR>\n" );
document.write( " 2 gold tickets 2*10 =20<BR>\n" );
document.write( "and 3 silver tickets. 3*5=15<BR>\n" );
document.write( "150+20+15= 160<BR>\n" );
document.write( "Number of tickets = 10<BR>\n" );
document.write( "Average price = 160/10 = 16 $<BR>\n" );
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document.write( "(b) Mike buys 8 tickets whose average cost is $12. He then buys five more platinum tickets. What is the new average cost of the tickets that he has bought? <BR>\n" );
document.write( "8 tickets average cost = $12<BR>\n" );
document.write( "Total cost =$96<BR>\n" );
document.write( "5 platinum = 5*25=125<BR>\n" );
document.write( "Total = 125+96=$ 221<BR>\n" );
document.write( "Total tickets = 13 <BR>\n" );
document.write( "Average cost = 221/13= $17<BR>\n" );
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document.write( "(c) Ophelia buys 10 tickets with an average cost of $14. Suppose that she buys n more platinum tickets. The new average cost of the tickets that she has bought is $20. What is the value of n? <BR>\n" );
document.write( "10 tickets average = $14 <BR>\n" );
document.write( "Total cost = $140<BR>\n" );
document.write( "n more platinum tickets <BR>\n" );
document.write( "cost per ticket = $25<BR>\n" );
document.write( "cost of n platinum tickets = $25n<BR>\n" );
document.write( "Total number of tickets = 10+n<BR>\n" );
document.write( "Average cost of tickets =140+25n / n+10 = 20<BR>\n" );
document.write( "140+25n = 20(n+10)<BR>\n" );
document.write( "140+25n = 20n +200<BR>\n" );
document.write( "25n-20n=200-140<BR>\n" );
document.write( "5n = 60<BR>\n" );
document.write( "n= 12\r<BR>\n" );
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