document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194190>Question 1194190</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A jar is filled with $1 and $2 in the ratio 5 to 4. There are 30 $1 coins in the jar. How many coins are there in total? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #826331 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=826331\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Given the ratio 5:4, you can set up a proportion<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F4=30%2Fx ALIGN=MIDDLE  ALT=\"5%2F4=30%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "to find the number of $2 coins.<br><BR>\n" );
document.write( "If you solve that by the standard method seen in most textbooks, you would \"cross multiply\" to get<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x=120 ALIGN=MIDDLE  ALT=\"5x=120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=120%2F5=24 ALIGN=MIDDLE  ALT=\"x=120%2F5=24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "A less formal and much easier way to solve the proportion is simply to see that 30 is 6 times 5, so the number of $2 coins is 6 times 4, which is 24.<br><BR>\n" );
document.write( "Finally, you could use formal algebra, starting with the given ratio 5:4<br><BR>\n" );
document.write( "5x = # of $1 coins<BR>\n" );
document.write( "4x = # of $2 coins<br><BR>\n" );
document.write( "5x=30<BR>\n" );
document.write( "x = 30/5 =6<BR>\n" );
document.write( "4x = 4(6) = 24<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );