document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=741162>Question 741162</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problem. \r<BR>\n" );
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document.write( "Elise wants to make a 61% alcohol solution. She has already poured 3 gal. of a 40% alcohol solution into a beaker. How many gal. of a 70% alcohol solution must she add to this to create the desired mixture?\r<BR>\n" );
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document.write( "This is what I have tried. <BR>\n" );
document.write( ".61x+1.2=.7x+2.1<BR>\n" );
document.write( ".61x=.7x+1.1<BR>\n" );
document.write( ".87x=1.1<BR>\n" );
document.write( "x=1.26 gallons\r<BR>\n" );
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document.write( "Is this correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #451870 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=451870\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Is that beaker big enough?\r<BR>\n" );
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document.write( "Let y = gallons of 70% alcohol to add.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A40%2By%2A70%29%2F%28totalVolumeOfMixture%29=61 ALIGN=MIDDLE  ALT=\"%283%2A40%2By%2A70%29%2F%28totalVolumeOfMixture%29=61\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "That is the 61% target concentration is the ratio of total amount of alcohol to the total amount of solution, expressing concentrations as percents.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%283%2A40%2By%2A70%29%2F%283%2By%29=61%29 ALIGN=MIDDLE  ALT=\"highlight%28%283%2A40%2By%2A70%29%2F%283%2By%29=61%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solve for y.\r<BR>\n" );
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document.write( "You could do it like, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A0.40%2By%2A0.70%29%2F%283%2By%29=0.61 ALIGN=MIDDLE  ALT=\"%283%2A0.40%2By%2A0.70%29%2F%283%2By%29=0.61\"   DISABLED_style= \"max-width:90%; height:auto;\" > but you may still multiply both sides by 100, so you'll have the equivalent of the above highlighted equation.\r<BR>\n" );
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document.write( "Further steps,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2A3%2B70y=61%283%2By%29 ALIGN=MIDDLE  ALT=\"40%2A3%2B70y=61%283%2By%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2A3%2B70y=3%2A61%2B61%2Ay ALIGN=MIDDLE  ALT=\"40%2A3%2B70y=3%2A61%2B61%2Ay\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2A3%2B70y-61y=3%2A61 ALIGN=MIDDLE  ALT=\"40%2A3%2B70y-61y=3%2A61\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2A3%2B9y=3%2A61 ALIGN=MIDDLE  ALT=\"40%2A3%2B9y=3%2A61\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9y=3%2A61-3%2A40=3%2861-40%29 ALIGN=MIDDLE  ALT=\"9y=3%2A61-3%2A40=3%2861-40%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9y=3%2A21 ALIGN=MIDDLE  ALT=\"9y=3%2A21\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3%2A3%2A7%2F9 ALIGN=MIDDLE  ALT=\"y=3%2A3%2A7%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=7%29 ALIGN=MIDDLE  ALT=\"highlight%28y=7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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