document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=631764>Question 631764</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The number of 25-centavo coin in a purse is 4 less than the number of 50-centavo coins.If the total amount is P8,how many coins are there in all? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #397784 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=397784\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The number of 25-centavo coin in a purse is 4 less than the number of 50-centavo coins.If the total amount is P8,how many coins are there in all?<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "t = f - 4<BR>\n" );
document.write( "25t + 50f = 800<BR>\n" );
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document.write( "Substitute to get:<BR>\n" );
document.write( "25(f-4) + 50f = 800<BR>\n" );
document.write( "75f - 100 = 800<BR>\n" );
document.write( "75f = 900<BR>\n" );
document.write( "f = 12 (# of 50-cent coins<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve for \"t\":<BR>\n" );
document.write( "t = f -4 = 8 (# of 25-cent coins<BR>\n" );
document.write( "=======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );