document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=818811>Question 818811</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The distance from the sun to the Andromeda galaxy is 1.2 x 10^19 miles. Light travels at a speed of 5.88 x 10^12 miles per year. How long does it take light to travel from the sun to the Andromeda galaxy. I just need to know whether to multiply or divide. I know the process for both dividing and multiplying in scientific notation. Thank you in advance </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492823 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=492823\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The distance from the sun to the Andromeda galaxy is 1.2 x 10^19 miles. Light travels at a speed of 5.88 x 10^12 miles per year. How long does it take light to travel from the sun to the Andromeda galaxy. <BR>\n" );
document.write( "----<BR>\n" );
document.write( "I just need to know whether to multiply or divide.<BR>\n" );
document.write( "--<BR>\n" );
document.write( "Use the units.  You want the answer in time units, years.<BR>\n" );
document.write( "miles*(mi/yr) doesn't work<BR>\n" );
document.write( "miles/(mi/yr) --> years<BR>\n" );
document.write( "Including units helps to avoid doing the wrong operation.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );