document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=218140>Question 218140</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student needs to put a 60% antifreeze solution in his car. If his car holds 10 quarts of antifreeze and he only has jugs of a 30% and 80% solution, how much of each solution should be used to fill his car? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #164305 by </B><A HREF=/tutors/aboutme.mpl?userid=RAY100><B>RAY100(1637)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=RAY100><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=164305\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let  x  =  amt  of  30%<BR>\n" );
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document.write( "Let  y  =  amt of   80%<BR>\n" );
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document.write( "x+y = 10,,,,,,,x=10-y<BR>\n" );
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document.write( "30% *x + 80% *y = 60% *10<BR>\n" );
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document.write( ".3x +.8y = 6,,,,,,,,,subst<BR>\n" );
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document.write( ".3(10-y) +.8y =6<BR>\n" );
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document.write( "3 -.3y +.8y =6<BR>\n" );
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document.write( ".5y = 3<BR>\n" );
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document.write( "y= 6 quarts,,,,,,,,x= 4 quarts<BR>\n" );
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document.write( ".check<BR>\n" );
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document.write( ".3(4) +.8(6) = .6(10)<BR>\n" );
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document.write( "1.2 +4.8 = 6,,,,,,ok<BR>\n" );
document.write( ".   </SPAN>\n" );
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