document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=882228>Question 882228</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if k = log(base7) 9/ log(base 7) 4<BR>\n" );
document.write( "then 2^(5k) = \r<BR>\n" );
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document.write( "I got k = 9/4 but it is wrong! what is K? <BR>\n" );
document.write( "Thanks 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 #532774 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=532774\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Choose use of Change of Base Formula, because we do not typically have tabulated information about logs to base 7.\r<BR>\n" );
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document.write( "Choosing Common Logs, base ten:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%287%2C9%29=log%28%289%29%29%2Flog%28%287%29%29 ALIGN=MIDDLE  ALT=\"log%287%2C9%29=log%28%289%29%29%2Flog%28%287%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >   and  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%287%2C4%29=log%28%284%29%29%2Flog%28%287%29%29 ALIGN=MIDDLE  ALT=\"log%287%2C4%29=log%28%284%29%29%2Flog%28%287%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=%28log%28%289%29%29%2Flog%28%287%29%29%29%2F%28log%28%284%29%29%2Flog%28%287%29%29%29 ALIGN=MIDDLE  ALT=\"k=%28log%28%289%29%29%2Flog%28%287%29%29%29%2F%28log%28%284%29%29%2Flog%28%287%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28k=log%28%289%29%29%2Flog%28%284%29%29%29 ALIGN=MIDDLE  ALT=\"highlight%28k=log%28%289%29%29%2Flog%28%284%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "You can use a table of common logarithms or an electronic calculator for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%28%289%29%29=0.954243 ALIGN=MIDDLE  ALT=\"log%28%289%29%29=0.954243\"   DISABLED_style= \"max-width:90%; height:auto;\" >  and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%28%284%29%29=0.60206 ALIGN=MIDDLE  ALT=\"log%28%284%29%29=0.60206\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=%280.954243%29%2F%280.60206%29=1.5850 ALIGN=MIDDLE  ALT=\"k=%280.954243%29%2F%280.60206%29=1.5850\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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