document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=77387>Question 77387</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The focal length f for a camera lens is related to the object distance o and the image distance i by the formula 1/f = 1/o + 1/i:\r<BR>\n" );
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document.write( "Fin the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #55497 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=55497\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/F=1/O+1/I<BR>\n" );
document.write( "1/250=1/2000000+1/I<BR>\n" );
document.write( "1/250-1/2000000=1/I<BR>\n" );
document.write( "(8000-1)/2000000=1/I CROSS MULTIPLY<BR>\n" );
document.write( "I(8000-1)=2000000<BR>\n" );
document.write( "7999I=2000000<BR>\n" );
document.write( "I=2000000/7999<BR>\n" );
document.write( "I=250.03125 </SPAN>\n" );
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