document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1201575>Question 1201575</A>: <I><SPAN STYLE=\"word-break: break-all;\"> AutoZone sells a regular car battery for $700 and heavy-duty model for $1100. If it sold 40 batteries yesterday for a total of $34000. Indicate how many of each of the type of batteries and indicate the dollar value sales of each type. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #836014 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=836014\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x + y = 40<BR>\n" );
document.write( "700x + 1100y = 34000<BR>\n" );
document.write( "multiply both sides of the first equation by 700 and leave the second equation alone to get:<BR>\n" );
document.write( "700x + 700y = 28000<BR>\n" );
document.write( "700x + 1100y = 34000<BR>\n" );
document.write( "subtract the first equation from the second to get:<BR>\n" );
document.write( "400y = 6000<BR>\n" );
document.write( "solve for y to get:<BR>\n" );
document.write( "y = 15<BR>\n" );
document.write( "that makes x = 25<BR>\n" );
document.write( "700 * 25 + 1100 * 15 = 3400, confirming the values of x and y are correct.<BR>\n" );
document.write( "your solution is that 25 batteries at 700 each and 15 batteries at 1100 each were sold.<BR>\n" );
document.write( "total sales were 25  * 700 = 17500 for the regular batters + 15 * 1100 = 16500 for the heavy duty batteries = total sales of 34000 </SPAN>\n" );
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