document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1162242>Question 1162242</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An alloy is composed of the following:\r<BR>\n" );
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document.write( "An amount of copper.\r<BR>\n" );
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document.write( "An amount of nickel equal to 62.5% of the copper.\r<BR>\n" );
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document.write( "An amount of zinc equal to 33.3% of the copper.\r<BR>\n" );
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document.write( "An amount of lead equal to 5% of the copper.\r<BR>\n" );
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document.write( "The total alloy weighs 40 1/6 lbs.\r<BR>\n" );
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document.write( "Determine amount of each part.\r<BR>\n" );
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document.write( "Unsure how to solve. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #785983 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13203)</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=785983\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Let x be the amount (pounds) of copper.<br><BR>\n" );
document.write( "Then express the amount of each other element in terms of x.<br><BR>\n" );
document.write( "nickel: 62.5% of x, which is (5/8)x<BR>\n" );
document.write( "zinc: 33.3% of x, which is (presumably) (1/3)x<BR>\n" );
document.write( "lead: 5% of x, which is (1/20)x<br><BR>\n" );
document.write( "The total weight is 40 1/6 pounds, or (241/6) pounds:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B%285%2F8%29x%2B%281%2F3%29x%2B%281%2F20%29x+=+241%2F6 ALIGN=MIDDLE  ALT=\"x%2B%285%2F8%29x%2B%281%2F3%29x%2B%281%2F20%29x+=+241%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply through by the least common denominator, which is 120:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=120x%2B75x%2B40x%2B6x+=+4820 ALIGN=MIDDLE  ALT=\"120x%2B75x%2B40x%2B6x+=+4820\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=241x+=+4820 ALIGN=MIDDLE  ALT=\"241x+=+4820\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+4820%2F241+=+20 ALIGN=MIDDLE  ALT=\"x+=+4820%2F241+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWERS:<br><BR>\n" );
document.write( "copper: x = 20 pounds<BR>\n" );
document.write( "nickel: (5/8)x = 12 1/2 pounds<BR>\n" );
document.write( "zinc: (1/3)x = 6 2/3 pounds<BR>\n" );
document.write( "lead: (1/20)x = 1 pound<br><BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "20 + 12 1/2 + 6 2/3 + 1 = 39+3/6+2/6 = 40 + 1/6<br><BR>\n" );
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