document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=214314>Question 214314</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having a hard time trying to figure this problem out. It would be greatly appreciated if you could assist me. This question is from a work book not the text book:\r<BR>\n" );
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document.write( "Brass is an alloy made up of copper and zinc in varying proportions.  How much brass containing 75.5% copper must be combined with a different brass containing 86.3% copper to make 5250kg of brass containing 80.0% copper\r<BR>\n" );
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document.write( "Thanks so much, </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #161879 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=161879\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Brass is an alloy made up of copper and zinc in varying proportions. How much brass containing 75.5% copper must be combined with a different brass containing 86.3% copper to make 5250kg of brass containing 80.0% copper <BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "copper + copper = copper<BR>\n" );
document.write( "0.755x + 0.863(5250-x) = 0.80*5250<BR>\n" );
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document.write( "Multiply thru by 1000 to get:<BR>\n" );
document.write( "755x + 863*5250 - 863x = 800*5250<BR>\n" );
document.write( "-108x = -63*5250<BR>\n" );
document.write( "x = 3062.5 kg (amt. of 75.5% copper in the mixture)<BR>\n" );
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document.write( "5250-3062.5 = 2187.5 kg (amt of 86.3% copper in the mixture)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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