document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1025670>Question 1025670</A>: <I><SPAN STYLE=\"word-break: break-all;\"> pLEASE HELP ME I AM SO CONFUSED BEEN OUT OF SCHOOL FOR OVER 30YRS AND NEVER HAD PROBLEMS LIKE THIS\r<BR>\n" );
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document.write( "1.Maricopa's Success scholarship fund receives a gift of $ 120000. The money is invested in stocks, bonds, and CDs. CDs pay 4 % interest, bonds pay 2 % interest, and stocks pay 7.7 % interest. Maricopa Success invests $ 35000 more in bonds than in CDs. If the annual income from the investments is $ 5835 , how much was invested in each account? \r<BR>\n" );
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document.write( " Maricopa Success invested $      in stocks.<BR>\n" );
document.write( " Maricopa Success invested $      in bonds. <BR>\n" );
document.write( " Maricopa Success invested $      in CDs. \r<BR>\n" );
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document.write( "2.A chemist has three different acid solutions. The first acid solution contains 25% acid, the second contains 35% and the third contains 55%. He wants to use all three solutions to obtain a mixture of 75 liters containing 45%acid, using 3 times as much of the 55% solution as the 35% solution. How many liters of each solution should be used?\r<BR>\n" );
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document.write( " The chemist should use  \r<BR>\n" );
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document.write( "  liters of 25% solution,<BR>\n" );
document.write( "  liters of 35% solution, and  <BR>\n" );
document.write( "  liters of 55% solution. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #640984 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=640984\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The two questions are <i>almost</i> the same kind.  I will do just your #2 mixture percents question.\r<BR>\n" );
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document.write( "x,y,z for the low, medium, and high(er) concentration acids.  The quantities of them IN LITERS to use.\r<BR>\n" );
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document.write( "<i>...using 3 times as much of the 55% solution as the 35% solution.</i><BR>\n" );
document.write( "This means  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z%2Fy=3 ALIGN=MIDDLE  ALT=\"z%2Fy=3\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and from this, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=3y ALIGN=MIDDLE  ALT=\"z=3y\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Make the material sum  equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By%2Bz=75 ALIGN=MIDDLE  ALT=\"x%2By%2Bz=75\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which you may use later.\r<BR>\n" );
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document.write( "Substituting for z, the material sum is also <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By%2B3y=75 ALIGN=MIDDLE  ALT=\"x%2By%2B3y=75\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B4y=75 ALIGN=MIDDLE  ALT=\"x%2B4y=75\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Make the percentage relationship equation for the mixture to prepare.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2825x%2B35y%2B55z%29%2F%2875%29=45 ALIGN=MIDDLE  ALT=\"%2825x%2B35y%2B55z%29%2F%2875%29=45\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which you might need effort to understand. <BR>\n" );
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document.write( "Again substitute for z in this percents equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2825x%2B35y%2B55%2A3y%29%2F75=45 ALIGN=MIDDLE  ALT=\"%2825x%2B35y%2B55%2A3y%29%2F75=45\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2825x%2B200y%29%2F75=45 ALIGN=MIDDLE  ALT=\"%2825x%2B200y%29%2F75=45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and you should reduce this, since it can be reduced.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%285%28x%2B40y%29%29%2F75=5%2A9 ALIGN=MIDDLE  ALT=\"%285%28x%2B40y%29%29%2F75=5%2A9\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B40y%29%2F75=9 ALIGN=MIDDLE  ALT=\"%28x%2B40y%29%2F75=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Summarize your equations as a system, keeping in mind, you temporarily eliminated z.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28system%28x%2B4y=75%2C%28x%2B40y%29%2F75=9%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28system%28x%2B4y=75%2C%28x%2B40y%29%2F75=9%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is your system to solve for x and y.  This IS a linear system; just multiply the members of the percents equation by 75.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28system%28x%2B4y=75%2Cx%2B40y=675%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28system%28x%2B4y=75%2Cx%2B40y=675%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If you not remember how to use Elimination Method, then just use Substitution Method.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=75-4y ALIGN=MIDDLE  ALT=\"x=75-4y\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2875-4y%29%2B40y=675 ALIGN=MIDDLE  ALT=\"%2875-4y%29%2B40y=675\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=75-4y%2B40y=675 ALIGN=MIDDLE  ALT=\"75-4y%2B40y=675\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36y=600 ALIGN=MIDDLE  ALT=\"36y=600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=600%2F36 ALIGN=MIDDLE  ALT=\"y=600%2F36\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=300%2F18 ALIGN=MIDDLE  ALT=\"y=300%2F18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=150%2F9 ALIGN=MIDDLE  ALT=\"y=150%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=50%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%28y=50%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=16%262%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%28y=16%262%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >----------the 35% acid, liters to use<BR>\n" );
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document.write( "FIND x.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=75-4%2A%2816%262%2F3%29 ALIGN=MIDDLE  ALT=\"x=75-4%2A%2816%262%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=8%261%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%28x=8%261%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---------liters to use of the 25% acid </SPAN>\n" );
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