document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=694599>Question 694599</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Brass is an alloy the contains the metals copper and zinc. Copper typically accounts for 3/5 of the mass of a piece of brass.<BR>\n" );
document.write( "a) what is the mass of copper in 175g of brass?<BR>\n" );
document.write( "b)what mass of brass contains 90 g of copper?<BR>\n" );
document.write( "c) what mass of brass contains 50g of zinc? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #428070 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=428070\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Brass = Copper + Zinc\r<BR>\n" );
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document.write( "Let Zinc be x<BR>\n" );
document.write( "copper = 3x/5\r<BR>\n" );
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document.write( "Brass = x+3x/5\r<BR>\n" );
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document.write( "8x/5\r<BR>\n" );
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document.write( "a) what is the mass of copper in 175g of brass?\r<BR>\n" );
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document.write( "175= 8x/5<BR>\n" );
document.write( "175*5=8x<BR>\n" );
document.write( "175*5/8 = x <BR>\n" );
document.write( "109.38--->Zinc\r<BR>\n" );
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document.write( "Copper = 3x/5 ---> 3*109.38/5<BR>\n" );
document.write( "65.63----> Copper\r<BR>\n" );
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document.write( "b)what mass of brass contains 90 g of copper?\r<BR>\n" );
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document.write( "Brass = 90*5/3<BR>\n" );
document.write( "=150 grams\r<BR>\n" );
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document.write( "c) what mass of brass contains 50g of zinc?\r<BR>\n" );
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document.write( "brass = 50 +(3/5)*50\r<BR>\n" );
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document.write( "=50+30<BR>\n" );
document.write( "=80 grams </SPAN>\n" );
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