document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1151699>Question 1151699</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Walmart sells thermometers ($6) and hot-water bottles ($2). In December, Walmart’s total sales were $2,132. Customers bought 4 times as many thermometers as hot-water bottles. How many of each did Walmart sell? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #773524 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=773524\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "(1) Solving with formal algebra....<br><BR>\n" );
document.write( "Let x = number of hot water bottles<BR>\n" );
document.write( "Then 4x = number of thermometers<br><BR>\n" );
document.write( "The cost of 4x thermometers at $6 each and x hot water bottles at $2 each was $2132.<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%286%29%2Bx%282%29+=+2132 ALIGN=MIDDLE  ALT=\"4x%286%29%2Bx%282%29+=+2132\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24x%2B2x+=+2132 ALIGN=MIDDLE  ALT=\"24x%2B2x+=+2132\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=26x+=+2132 ALIGN=MIDDLE  ALT=\"26x+=+2132\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+2132%2F26+=+82 ALIGN=MIDDLE  ALT=\"x+=+2132%2F26+=+82\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER:<BR>\n" );
document.write( "The number of hot water bottles sold was x=82.<BR>\n" );
document.write( "The number of thermometers sold was 4 = 328.<br><BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "82(2)+328(6) = 164+1968 = 2132<br><BR>\n" );
document.write( "(2) An informal solution method, which leads to virtually the same calculations....<br><BR>\n" );
document.write( "Since the number of thermometers sold was 4 times the number of hot water bottles, imagine \"packages\" each containing 4 thermometers and one hot water bottle.<BR>\n" );
document.write( "The cost of each of those packages is 4($6)+1($2) = $24+$2 = $26.<BR>\n" );
document.write( "The number of those packages sold to make $2132 is 2132/26 = 82.<BR>\n" );
document.write( "82 packages each containing 4 thermometers and 1 hot water bottle makes a total of 328 thermometers and 82 hot water bottles.<br><BR>\n" );
document.write( " </SPAN>\n" );
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