document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=45161>Question 45161</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jill has $3.50 in nickels and dimes.If she has 50 coins, how many of each type of coin 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 #31957 by </B><A HREF=/tutors/aboutme.mpl?userid=maribeth_abella><B>maribeth_abella(11)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=maribeth_abella><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=31957\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> lets say the the nickels is n while the dimes is d.\r<BR>\n" );
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document.write( "first equation\r<BR>\n" );
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document.write( "n + d = the number of coins\r<BR>\n" );
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document.write( "n + d = 50\r<BR>\n" );
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document.write( "second equation\r<BR>\n" );
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document.write( "amount of a nickel ( n ) + amount of a dime ( d ) = the total amount\r<BR>\n" );
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document.write( "0.05 ( n ) + 0.10 ( d ) = $3.50\r<BR>\n" );
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document.write( "multiply to both side by 100 beacause we need to make the dollar to cent so if \r<BR>\n" );
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document.write( "you convert $1=100 cents.\r<BR>\n" );
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document.write( "100 [ 0.05 ( n ) + 0.10 ( d ) = $3.50 ] 100\r<BR>\n" );
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document.write( "5 ( n ) + 10 ( d ) = 350\r<BR>\n" );
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document.write( "5n + 10d = 350\r<BR>\n" );
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document.write( "so the second equation is 5n + 10d = 350\r<BR>\n" );
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document.write( "Now, we solve the two equations to get the no. of dimes:\r<BR>\n" );
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document.write( " n +   d =  50\r<BR>\n" );
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document.write( "5n + 10d = 350\r<BR>\n" );
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document.write( "Then, we multiply the first equation by -5. The result would be like this:\r<BR>\n" );
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document.write( "-5n -  5d = -250<BR>\n" );
document.write( " 5n + 10d =  350\r<BR>\n" );
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document.write( "5d = 100\r<BR>\n" );
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document.write( "then, divide both side by the numerical co-efficient 5 .\r<BR>\n" );
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document.write( "d = 20\r<BR>\n" );
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document.write( "so, the number of dimes is 20.\r<BR>\n" );
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document.write( "now, the no. of nickels: \r<BR>\n" );
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document.write( "now, we have to substitute d to 20 and use equation 1(but you can use \r<BR>\n" );
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document.write( "equation 2 if you like) because we can get the number of nickels.\r<BR>\n" );
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document.write( "n + 20 = 50\r<BR>\n" );
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document.write( "then, transpose 20 to the other side.\r<BR>\n" );
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document.write( "n = 30\r<BR>\n" );
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document.write( "so, the no. of nickels is 30.\r<BR>\n" );
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document.write( "THEN, WE CAN CONCLUDE THAT THE NO> OF DIMES IS 20 AND THE NICKEL IS 30.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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