document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1116490>Question 1116490</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the average ( arithmetic mean ) of a and –5 is 10, then a = \r<BR>\n" );
document.write( "\n" );
document.write( " 25 <BR>\n" );
document.write( " 15 <BR>\n" );
document.write( " 5<BR>\n" );
document.write( " -5<BR>\n" );
document.write( " -15 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #731417 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=731417\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To average the two numbers, you add them and divide by 2:   <BR>\n" );
document.write( "(a + (-5))/2 = 10<BR>\n" );
document.write( "(a - 5)/2 = 10\r<BR>\n" );
document.write( "\n" );
document.write( "Solve this equation for  a   and you have the answer.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );