document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=27604>Question 27604</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A machine requires four hours to make a unit of Product A and three hours to make a unit of product B. Last month the machine operated for 200 hours producing a total of 60 units . How many units of Product A were produced </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #15020 by </B><A HREF=/tutors/aboutme.mpl?userid=Paul><B>Paul(988)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Paul><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=15020\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let A unit be x<BR>\n" );
document.write( "Let b unit be y<BR>\n" );
document.write( "x+y=60<BR>\n" );
document.write( "y=60-x (subsitution)\r<BR>\n" );
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document.write( "4x+3y=200<BR>\n" );
document.write( "Use subsitution<BR>\n" );
document.write( "4x+3(60-x)=200<BR>\n" );
document.write( "4x-3x+180=200<BR>\n" );
document.write( "x=20\r<BR>\n" );
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document.write( "y=60-20<BR>\n" );
document.write( "y=40\r<BR>\n" );
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document.write( "Hence about 20 units of product A were produced and about 40 units of product B were prodduced.<BR>\n" );
document.write( "Paul. </SPAN>\n" );
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