document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=42586>Question 42586</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A single dose of a dietary supplement contains 0.2 gram of calcium and 0.2 gram of vitamin C. A single dose of a secondary supplement contains 0.1 gram of calcium and 0.4 gram of vitamin C. If a person wants to take 0.6 gram of calcium and 1.2 grams of vitamin C, how many doses of each supplement should she take? <BR>\n" );
document.write( "I'm guessing you have to write a system of equations but I'm not sure how it should be. This is my guess:<BR>\n" );
document.write( "(a= calcium, c= vitamin C)<BR>\n" );
document.write( "0.2a + 0.2c = ?<BR>\n" );
document.write( "0.1a + 0.4c = ? <BR>\n" );
document.write( "I don't know if that's anywhere near correct but if it is, I have no clue what the equations should equal to. Please help! Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #27685 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=27685\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 0.2a + 0.2c = ?<BR>\n" );
document.write( "0.1a + 0.4c = ? <BR>\n" );
document.write( "(.2a + .2c) + (.1a + .4c) = .3a + .6c<BR>\n" );
document.write( ".3a + .6c<BR>\n" );
document.write( "you want .6 grams of calcium<BR>\n" );
document.write( ".3(a)<BR>\n" );
document.write( ".3(2) = .6<BR>\n" );
document.write( "a = 2<BR>\n" );
document.write( "you want 1.2 grams of vitamin C<BR>\n" );
document.write( ".6(c)<BR>\n" );
document.write( ".6(2) = 1.2<BR>\n" );
document.write( "c = 2<BR>\n" );
document.write( "Two doses from each supplement. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );