document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=320658>Question 320658</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of a 45% acid solution must be added to 15 liters of a 30% acid solution to produce a 35% acid solution?\r<BR>\n" );
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document.write( " I tried 45%(x) + 30%*(15-x)= (35%)(15)<BR>\n" );
document.write( ".45+.30(15-x)=(.35)(15)<BR>\n" );
document.write( ".45x + 4.5 -.30x+ 5.25<BR>\n" );
document.write( ".15x +4.5 = 5.25<BR>\n" );
document.write( "     -4.5 = -4.5\r<BR>\n" );
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document.write( ".75/.15 = 5% answer\r<BR>\n" );
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document.write( "Thank you; Word problems are definitely my weakness in understanding and setting up.    \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 #229683 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=229683\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many liters of a 45% acid solution must be added to 15 liters of a 30% acid solution to produce a 35% acid solution? <BR>\n" );
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document.write( "I'm not sure what you are doing here, but let's think this out.<BR>\n" );
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document.write( "Let x = amt of 45% solution to be added<BR>\n" );
document.write( "then we know the resulting mixture will be (x+15), right?<BR>\n" );
document.write( "Use the decimal equiv, write a typical mixture equation<BR>\n" );
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document.write( ".45x + .30(15) = .35(x+15)<BR>\n" );
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document.write( ".45x + 4.5 = .35x + 5.25<BR>\n" );
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document.write( ".45x - .35x = 5.25 - 4.5<BR>\n" );
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document.write( ".10x = .75<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.75%2F.1 ALIGN=MIDDLE  ALT=\".75%2F.1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 7.5 liters to be added<BR>\n" );
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document.write( "Check this in the original equation<BR>\n" );
document.write( ".45(7.5) + .30(15) = .35(7.5+15)<BR>\n" );
document.write( "3.375 + 4.5 = .35(22.5)<BR>\n" );
document.write( "7.875 = 7.875; confirms our solution<BR>\n" );
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document.write( "did this make sense to you?<BR>\n" );
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