document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1132235>Question 1132235</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A computer purchased for $650 loses 18% of its value every year.\r<BR>\n" );
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document.write( "The computer's value can be modeled by the function v(t)=a&#8901;b^t, where v is the dollar value and t the number of years since purchase. \r<BR>\n" );
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document.write( "In the exponential model a = , b = \r<BR>\n" );
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document.write( "In how many years will the computer be worth half its original value? Round answer to 1 decimal place.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #749199 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=749199\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a, the initial purchased value,  $650.\r<BR>\n" );
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document.write( "b, loss of 18% of value per year,  1-0.18=0.82.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=ab%5Et ALIGN=MIDDLE  ALT=\"v=ab%5Et\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "for halving the value,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1b%5Et=1%2F2 ALIGN=MIDDLE  ALT=\"1b%5Et=1%2F2\"   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=log%28%28b%5Et%29%29=log%28%281%2F2%29%29 ALIGN=MIDDLE  ALT=\"log%28%28b%5Et%29%29=log%28%281%2F2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2Alog%28%28b%29%29=log%28%281%2F2%29%29 ALIGN=MIDDLE  ALT=\"t%2Alog%28%28b%29%29=log%28%281%2F2%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=t=log%28%281%2F2%29%29%2Flog%28%28b%29%29 ALIGN=MIDDLE  ALT=\"t=log%28%281%2F2%29%29%2Flog%28%28b%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=t=log%28%281%2F2%29%29%2Flog%28%280.82%29%29 ALIGN=MIDDLE  ALT=\"t=log%28%281%2F2%29%29%2Flog%28%280.82%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=t=3.5years ALIGN=MIDDLE  ALT=\"t=3.5years\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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