document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=893712>Question 893712</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two rectangles are similar. The smaller has a length of 8cm and an area of 40cm^2. If the width of the larger rectangle is 10cm, find its area. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #541446 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=541446\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The larger similar rectangle has linear dimensions k times the smaller rectangle.\r<BR>\n" );
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document.write( "Small rectangle, 8 cm by w cm.<BR>\n" );
document.write( "Area, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8w=40 ALIGN=MIDDLE  ALT=\"8w=40\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Larger rectangle, 8k cm by kw cm.<BR>\n" );
document.write( "Area, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8k%2Akw ALIGN=MIDDLE  ALT=\"8k%2Akw\"   DISABLED_style= \"max-width:90%; height:auto;\" >;<BR>\n" );
document.write( "but also is given that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=kw=10 ALIGN=MIDDLE  ALT=\"kw=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Find two equations with two unknowns!<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8w=40 ALIGN=MIDDLE  ALT=\"8w=40\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=kw=10 ALIGN=MIDDLE  ALT=\"kw=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "First one gives <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w=40%2F8=5 ALIGN=MIDDLE  ALT=\"w=40%2F8=5\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Using this in the second equation gives <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k%2A5=10 ALIGN=MIDDLE  ALT=\"k%2A5=10\"   DISABLED_style= \"max-width:90%; height:auto;\" > and therefore <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=2 ALIGN=MIDDLE  ALT=\"k=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Find the requested area for the larger rectangle.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8k%2A10 ALIGN=MIDDLE  ALT=\"8k%2A10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2A2%2A10 ALIGN=MIDDLE  ALT=\"8%2A2%2A10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28160%2Acm%5E2%29 ALIGN=MIDDLE  ALT=\"highlight%28160%2Acm%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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