document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205779>Question 1205779</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There were 5c 10c and 20c coins in Joel's wallet in the ratio of 2:6:7 respectively. If he takes out half the number of 5c and half the number of 10c coins they would make up $4.20<BR>\n" );
document.write( "How many 20c coins in his wallet.<BR>\n" );
document.write( "How much money does he have  altogether  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #842831 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52797)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=842831\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "There are 5c, 10c, and 20c coins in Joel's wallet in the ratio of 2:6:7 respectively. <BR>\n" );
document.write( "If he takes out half the number of 5c and half the number of 10c coins they would make up $4.20<BR>\n" );
document.write( "(a) How many 20c coins in his wallet.<BR>\n" );
document.write( "(b) How much money does he have altogether<BR>\n" );
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document.write( "    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I changed the first line in your post, in order for <BR>\n" );
document.write( "    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the time forms be consistent in all parts of the post.\r<BR>\n" );
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document.write( "According to the problem, there are 2x of 5c coins; 6x of 10c coins and 7x of 20c coins,\r\n" );
document.write( "where x is the common measure of these different quantities.\r\n" );
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document.write( "Half of 2x 5c coins is x 5c coins; half of 6x 10c coins is 3x 10c coins.\r\n" );
document.write( "Their total is $4.20, or 420 cents\r\n" );
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document.write( "    5x + 10(3x) = 420  cents.\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    5x + 30x = 420\r\n" );
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document.write( "      35x    = 420\r\n" );
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document.write( "        x    = 420/35 = 12.\r\n" );
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document.write( "Now we are in position to answer the problem's questions.\r\n" );
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document.write( "(a)  The number of 20c coins in his wallet is 7x = 7*12 = 84.\r\n" );
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document.write( "(b)  The total money in his wallet is  5*(2x) + 10*(6x) + 20*(7x) = 5*(2*12) + 10*(6*12) + 20*(7*12) = 2520 cents or $25.20.\r\n" );
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document.write( "Solved.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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