document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=228458>Question 228458</A>: <I><SPAN STYLE=\"word-break: break-all;\"> streakfree window cleaner is 12% alcohol and sunstream window cleaner is 30% alcohol. how much of each should be used to make 90 oz. of a cleaner that is 20% alcohol? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #169567 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=169567\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  streakfree window cleaner is 12% alcohol and sunstream window cleaner is 30% alcohol. how much of each should be used to make 90 oz. of a cleaner that is 20% alcohol?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "alcohol + alcohol = alcohol<BR>\n" );
document.write( "0.12x + 0.30(90-x) = 0.20*90<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "12x + 30*90 - 30x = 20*90<BR>\n" );
document.write( "-18x = -10*90<BR>\n" );
document.write( "x = 50 oz (amt. of 12% solution in the mixture)<BR>\n" );
document.write( "90-x = 40 oz (amt. of 30% solution in the mixture)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );