document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=366635>Question 366635</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use given information to write a system of equations; then, solve the system. Be sure to clearly identify all unknowns in the equation.\r<BR>\n" );
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document.write( "An auto mechanic student needs 25 gallons of a 21% antifreeze solution. She has available a 40% solution and a 15% solution. How much of each solution should she use to end up with 21% solution?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #261401 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=261401\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 25*.21=5.25<BR>\n" );
document.write( "x*.40=.40x<BR>\n" );
document.write( "(25-x)*.15=3.75-.15x<BR>\n" );
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document.write( ".40x+3.75-.15x=5.25<BR>\n" );
document.write( ".25x=1.5<BR>\n" );
document.write( "x=6 gal. of 40%<BR>\n" );
document.write( "25-x=19 gal. of 15%<BR>\n" );
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document.write( "Ed </SPAN>\n" );
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