document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=395291>Question 395291</A>: <I><SPAN STYLE=\"word-break: break-all;\"> betty has $2.20 in dimes and quarters. If the number of dimes is 1/4 the number of quarters, how many dimes does she have. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #280551 by </B><A HREF=/tutors/aboutme.mpl?userid=jrfrunner><B>jrfrunner(365)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jrfrunner><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=jrfrunner><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=280551\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you have two unknowns d=number of dimes and q=number of quarters<BR>\n" );
document.write( "so you need two equations to find the two unknowns<BR>\n" );
document.write( "--<BR>\n" );
document.write( "given  <BR>\n" );
document.write( "eq1: d=1/4q or 4d=q<BR>\n" );
document.write( "eq2: 0.1d+0.25d=2.20 <BR>\n" );
document.write( "-<BR>\n" );
document.write( "multiply eq2 by 100 to eliminate decimals<BR>\n" );
document.write( "10d+25d=220<BR>\n" );
document.write( "10d+25(4d)=220  substitute 4d=q<BR>\n" );
document.write( "110d=220<BR>\n" );
document.write( "d=220/110=2  or 2 dimes<BR>\n" );
document.write( "since q=4d then 8 quarters  </SPAN>\n" );
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