document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=275524>Question 275524</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the average (arithmetic mean) of k and 7k is 60, then k =\r<BR>\n" );
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document.write( "a)7.5 b) 8 c) 9.5 d) 15\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200944 by </B><A HREF=/tutors/aboutme.mpl?userid=fwm5007><B>fwm5007(5)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fwm5007><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=200944\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To find the average you add the numbers together and divide by how many numbers there were. For instance if you had 2 and 4, you would add 2+4=6 and divide 6/2 which would give you an average of 3. In this problem you have the average and are working backwards in a sense. Your numbers are K and 7K. Those added together and then divided by 2(since there is only 2 numbers together) will equal the average given of 60. Set up the equation like this:\r<BR>\n" );
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document.write( "(7K + K)/2=60<BR>\n" );
document.write( "Multiply each side by 2:<BR>\n" );
document.write( "7K + K =120<BR>\n" );
document.write( "Add the like terms<BR>\n" );
document.write( "8K = 120<BR>\n" );
document.write( "Divide by 8:<BR>\n" );
document.write( "K = 15 </SPAN>\n" );
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