document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=567354>Question 567354</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hilly areas often have road signs giving the percentage grade for the road. A 5% grade, for example, means that the altitude changes by 5 feet for each 100 feet of horizontal distance. \r<BR>\n" );
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document.write( "Suppose an uphill road sign indicates a road grade of 3%. What is the angle of elevation of the road?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #366507 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=366507\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hilly areas often have road signs giving the percentage grade for the road. A 5% grade, for example, means that the altitude changes by 5 feet for each 100 feet of horizontal distance.<BR>\n" );
document.write( "Suppose an uphill road sign indicates a road grade of 3%. What is the angle of elevation of the road? <BR>\n" );
document.write( "A 3% grade means the altitude changes by 3 feet for each 100 feet.<BR>\n" );
document.write( "Applying trigonometry,<BR>\n" );
document.write( "tan x = 3/100<BR>\n" );
document.write( "tan x = .03<BR>\n" );
document.write( "x = 1.72 degrees </SPAN>\n" );
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