document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72832>Question 72832</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395430526/algebrahomeworkh>Algebra:Structure and Method</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How many grams of gold alloy that costs $4 per gram must be mixed with thirty grams of a gold alloy that costs $7 per gram to make an alloy that costs $5 per gram? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #52087 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=52087\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 30*7+4X=5(X+30)<BR>\n" );
document.write( "210+4X=5X+150<BR>\n" );
document.write( "4X-5X=150-210<BR>\n" );
document.write( "-X=-60<BR>\n" );
document.write( "X=60 GRAMS OF GOLD ALLOY NEEDED TO PRODUCE THE REQUIRED $5 ALLOY.<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "30*7+4*60=5(60+30)<BR>\n" );
document.write( "210+240=5(90)<BR>\n" );
document.write( "450=450 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );