document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=248649>Question 248649</A>: <I><SPAN STYLE=\"word-break: break-all;\"> John has a total of 13 coins in his pocket. Of the 13 coins, they are all either quarters or dimes. The total value of the coins is $2.50. How many quarters does John have in his pocket? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #181185 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=181185\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> John has a total of 13 coins in his pocket. Of the 13 coins, they are all either quarters or dimes. The total value of the coins is $2.50. How many quarters does John have in his pocket?<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "Quantity Equation: q + d = 13<BR>\n" );
document.write( "Value Equation::::25q+10d = 250<BR>\n" );
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document.write( "Multiply thru the 1st equation by 10.<BR>\n" );
document.write( "10q + 10d = 130<BR>\n" );
document.write( "25q + 10d = 250<BR>\n" );
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document.write( "Subtract the 1st equation from the 2nd and solve for \"q\":<BR>\n" );
document.write( "15q = 120<BR>\n" );
document.write( "q = 8 (# of quarters)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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