document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=609323>Question 609323</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One unit of whole wheat flour has 13.6 grams of protein and 2.5 grams of fat. One unit of whole milk has 3.4 grams of protein and 3.7 grams of fat. To the nearest tenth fin dthe number of units of whole wheat flour and whole milk that must be mixed to make dough that has 75 grams of protein and 15 grams of fat. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #383687 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=383687\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = units of whole wheat flour needed<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = units of whole milk needed<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > units of whole wheat flour has <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13.6a+ ALIGN=MIDDLE  ALT=\"+13.6a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > grams protein<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > units of whole wheat flour has <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.5a+ ALIGN=MIDDLE  ALT=\"+2.5a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > grams fat<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > units of whole milk has <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.4b+ ALIGN=MIDDLE  ALT=\"+3.4b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > grams protein<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > units of whole milk has <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.7b+ ALIGN=MIDDLE  ALT=\"+3.7b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > grams fat<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13.6a+%2B+3.4b+=+75+ ALIGN=MIDDLE  ALT=\"+13.6a+%2B+3.4b+=+75+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.5a+%2B+3.7b+=+15+ ALIGN=MIDDLE  ALT=\"+2.5a+%2B+3.7b+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "(1)  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+136a+%2B+34b+=+750+ ALIGN=MIDDLE  ALT=\"+136a+%2B+34b+=+750+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2)  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25a+%2B+37b+=+150+ ALIGN=MIDDLE  ALT=\"+25a+%2B+37b+=+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Multiply both sides of (2) by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+34%2F37+ ALIGN=MIDDLE  ALT=\"+34%2F37+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25%2A%2834%2F37%29a+%2B+34b+=+%2834%2F37%29%2A150+ ALIGN=MIDDLE  ALT=\"+25%2A%2834%2F37%29a+%2B+34b+=+%2834%2F37%29%2A150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+22.973a+%2B+34b+=+137.838+ ALIGN=MIDDLE  ALT=\"+22.973a+%2B+34b+=+137.838+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Subtract (2) from (1)<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+136a+%2B+34b+=+750+ ALIGN=MIDDLE  ALT=\"+136a+%2B+34b+=+750+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-22.973a+-+34b+=+-137.838+ ALIGN=MIDDLE  ALT=\"+-22.973a+-+34b+=+-137.838+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+113.027a+=+612.162+ ALIGN=MIDDLE  ALT=\"+113.027a+=+612.162+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+5.416+ ALIGN=MIDDLE  ALT=\"+a+=+5.416+\"   DISABLED_style= \"max-width:90%; height:auto;\" > units<BR>\n" );
document.write( "and, since<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25a+%2B+37b+=+150+ ALIGN=MIDDLE  ALT=\"+25a+%2B+37b+=+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25%2A5.416+%2B+37b+=+150+ ALIGN=MIDDLE  ALT=\"+25%2A5.416+%2B+37b+=+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+135.4+%2B+37b+=+150+ ALIGN=MIDDLE  ALT=\"+135.4+%2B+37b+=+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+37b+=+150+-+135.4+ ALIGN=MIDDLE  ALT=\"+37b+=+150+-+135.4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+37b+=+14.6+ ALIGN=MIDDLE  ALT=\"+37b+=+14.6+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+.395+ ALIGN=MIDDLE  ALT=\"+b+=+.395+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "5.4 units of whole wheat flour is needed<BR>\n" );
document.write( ".4 units of whole milk are needed<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13.6%2A5.4+%2B+3.4%2A.4+=+75+ ALIGN=MIDDLE  ALT=\"+13.6%2A5.4+%2B+3.4%2A.4+=+75+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+73.44+%2B+1.36+=+75+ ALIGN=MIDDLE  ALT=\"+73.44+%2B+1.36+=+75+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+74.8+=+75+ ALIGN=MIDDLE  ALT=\"+74.8+=+75+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ( close )<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.5%2A5.4+%2B+3.7%2A.4+=+15+ ALIGN=MIDDLE  ALT=\"+2.5%2A5.4+%2B+3.7%2A.4+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13.5+%2B+1.48+=+15+ ALIGN=MIDDLE  ALT=\"+13.5+%2B+1.48+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+14.98+=+15+ ALIGN=MIDDLE  ALT=\"+14.98+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "OK\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );