document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=192957>Question 192957</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ok here it is it is a mixture problem. the formula is V+AC value amount cost. \r<BR>\n" );
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document.write( "A clothing company buys 60 yards of cotton and 90 yards of wool fro a total cost of $1800. Another purchase at the same price included 80 yards of cotton and 20 yds of wook for a total cost of $1000. Find the cost per yard of the cotton and wool? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #144808 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=144808\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A clothing company buys 60 yards of cotton and 90 yards of wool fro a total cost of $1800. Another purchase at the same price included 80 yards of cotton and 20 yds of wook for a total cost of $1000. Find the cost per yard of the cotton and wool?<BR>\n" );
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document.write( "Value Equation: 60c + 90W = 1800 dollars<BR>\n" );
document.write( "Value Equation: 80c + 20w = 1000 dollars<BR>\n" );
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document.write( "6c + 9w = 180<BR>\n" );
document.write( "8c + 2w = 100<BR>\n" );
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document.write( "Modify:<BR>\n" );
document.write( "12c + 18w = 360<BR>\n" );
document.write( "72c + 18w = 900<BR>\n" );
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document.write( "60w = 540<BR>\n" );
document.write( "w = $9 (price for a yard of wool)<BR>\n" );
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document.write( "Substitute into 6c + 9w = 180 to solve for \"c\":<BR>\n" );
document.write( "6c + 9*9 = 180<BR>\n" );
document.write( "6c = 99<BR>\n" );
document.write( "c = $16.50 (price for a yard of cotton<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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