document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=76067>Question 76067</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0669433594/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> you are in charge of buying softballs for three different leagues. The Pony league uses an 11 inch softball priced at $2.25. The Junior and Senior Leagues use a 12 inch softball priced at $2.75. The invoicesmeared in the rain. You can still read the totals, 80 softballs for $210. How many of each size are there? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #54633 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=54633\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Let x=number of of 11 in balls<BR>\n" );
document.write( "Then 80-x=number of 12 in balls\r<BR>\n" );
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document.write( "Total cost of 11 in balls plus total cost of 12 in balls equals $210\r<BR>\n" );
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document.write( "So, our equation to solve is:\r<BR>\n" );
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document.write( "2.25x+2.75(80-x)=210  get rid of parens\r<BR>\n" );
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document.write( "2.25x+220-2.75x=210  subtract 220 from both sides\r<BR>\n" );
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document.write( "2.25x+220-220-2.75x=210-220  collect like terms\r<BR>\n" );
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document.write( "-0.50x=-10  divide both sides by -0.50<BR>\n" );
document.write( "x=20---------------------------------------------number of 11 in balls\r<BR>\n" );
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document.write( "80-x=80-20=60---------------------------------------number of 12 in balls\r<BR>\n" );
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document.write( "CK\r<BR>\n" );
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document.write( "2.25(20)+2.75(60)=210<BR>\n" );
document.write( "45+165=210<BR>\n" );
document.write( "210=210\r<BR>\n" );
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document.write( "Hope this helps---ptaylor\r<BR>\n" );
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document.write( " </SPAN>\n" );
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