document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=206983>Question 206983</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321269470/algebrahomeworkh>Introductory Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please help...\r<BR>\n" );
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document.write( "An open rectangular gutter is made by turning up the sides of a piece of metal 20 in. wide. The area of the cross-section of the gutter is 50in^2. Find the depth of the gutter. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #156489 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=156489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> dw=50 or w=50/d<BR>\n" );
document.write( "2d+w=20<BR>\n" );
document.write( "2d+50/d=20<BR>\n" );
document.write( "(2d*d+50)/d=20<BR>\n" );
document.write( "(2d^2+50)/d=20<BR>\n" );
document.write( "2d^2+50=20d<BR>\n" );
document.write( "2d^2-20d+50=0<BR>\n" );
document.write( "2(d^2-10d+25)=0<BR>\n" );
document.write( "2(d-5)(d-5)=0<BR>\n" );
document.write( "d-5=0<BR>\n" );
document.write( "d=5 for the depth measurement.<BR>\n" );
document.write( "5w=50<BR>\n" );
document.write( "w=50/5<BR>\n" );
document.write( "w=10 for the width measurement.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "2*5+10=20<BR>\n" );
document.write( "10+10=20<BR>\n" );
document.write( "20=10 </SPAN>\n" );
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