document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=354396>Question 354396</A>: <I><SPAN STYLE=\"word-break: break-all;\">  An auto mechanics has two bottles of battery acid solutions. One contains 10% acid and the other 4% acid. How many cubic centimeters of each solution must be used to make 120 cm³. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #253246 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=253246\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It depends on what concentration you want.<BR>\n" );
document.write( "Here's a similar problem.<BR>\n" );
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document.write( "an alloy of metals is 25% copper. Another alloy is 50% copper. How much of each alloy should be used to make 1000 grams of an alloy that is 45% copper?<BR>\n" );
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document.write( "t = amount of 25%<BR>\n" );
document.write( "f = amount of 50%<BR>\n" );
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document.write( "t + f = 1000<BR>\n" );
document.write( "0.25t + 0.5f = 0.45*1000<BR>\n" );
document.write( "Can you finish it?<BR>\n" );
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