document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=695191>Question 695191</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The load L that a horizontal beam can safely support is directly proportional to the square of the depth, d, of the beam. A beam with a depth of 8 inches can safely support 800 pounds. <BR>\n" );
document.write( "a)Find the constant variation and write the variation equation<BR>\n" );
document.write( "b)Find the load that a similar beam with a depth of 6 inches can safely support.\r<BR>\n" );
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document.write( "I set this up at a cross multiply problem and got the wrong answer, so I'm not sure where I went wrong. As for b, I'm not sure how to even go about solving that. Thanks so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #428361 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=428361\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The load L that a horizontal beam can safely support is directly proportional to the square of the depth, d, of the beam. A beam with a depth of 8 inches can safely support 800 pounds. <BR>\n" );
document.write( "a)Find the constant variation and write the variation equation<BR>\n" );
document.write( "L = k*d^2<BR>\n" );
document.write( "800 = k*8^2<BR>\n" );
document.write( "k = 800/64 = 12.5<BR>\n" );
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document.write( "That is the constant of variation.<BR>\n" );
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document.write( "b)Find the load that a similar beam with a depth of 6 inches can safely support.<BR>\n" );
document.write( "L = 12.5*d^2<BR>\n" );
document.write( "L = 12.5*6^2<BR>\n" );
document.write( "Load = 450 pounds<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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