document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=505513>Question 505513</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Harold wrote to 15 people, cost of postage was $5.64. cost of post card is .28 and cost of letter is .44.  How many letters were written? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #339905 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=339905\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Harold wrote to 15 people, cost of postage was $5.64. cost of post card is .28 and cost of letter is .44. How many letters were written?<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "Item Equation:::: C + L = 15 items<BR>\n" );
document.write( "Value Equation::28C +44L = 564 cents<BR>\n" );
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document.write( "Multiply thru the Item equation by 28 to get:<BR>\n" );
document.write( "28C + 28L = 28*15<BR>\n" );
document.write( "28C + 44L = 564<BR>\n" );
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document.write( "Subtract and solve for \"L\":<BR>\n" );
document.write( "16L = 144<BR>\n" );
document.write( "L = 9 (# of letters written)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );