document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=697434>Question 697434</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A laptop computer is purchased for $1200 . Each year, its value is 70% of its value the year before. After how many years will the laptop computer be worth $300  or less?  \r<BR>\n" );
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document.write( "Write the answer as a whole number.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #429992 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=429992\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A laptop computer is purchased for $1200 . Each year, its value is 70% of its value the year before. After how many years will the laptop computer be worth $300  or less?  \r<BR>\n" );
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document.write( "Let y = year that laptop will be worth $300, or less<BR>\n" );
document.write( "Since it loses 70%, or .7 of its value, then: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200%28.7%29%5Ey+%3C=+300 ALIGN=MIDDLE  ALT=\"1200%28.7%29%5Ey+%3C=+300\"   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=%28.7%29%5Ey+%3C=+300%2F1200 ALIGN=MIDDLE  ALT=\"%28.7%29%5Ey+%3C=+300%2F1200\"   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=%28.7%29%5Ey+%3C=+1%2F4 ALIGN=MIDDLE  ALT=\"%28.7%29%5Ey+%3C=+1%2F4\"   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+%28.7%2C+%281%2F4%29%29+%3C=+y ALIGN=MIDDLE  ALT=\"log+%28.7%2C+%281%2F4%29%29+%3C=+y\"   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+%281%2F4%29%2Flog+%28.7%29+%3C=+y ALIGN=MIDDLE  ALT=\"log+%281%2F4%29%2Flog+%28.7%29+%3C=+y\"   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=3.886716+%3C=+y ALIGN=MIDDLE  ALT=\"3.886716+%3C=+y\"   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=y+%3E=+3.886716 ALIGN=MIDDLE  ALT=\"y+%3E=+3.886716\"   DISABLED_style= \"max-width:90%; height:auto;\" > &#8776; <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%284%29 ALIGN=MIDDLE  ALT=\"highlight_green%284%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "After approximately 4 years, it will be worth < $300 ($288.12).\r<BR>\n" );
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document.write( "You can do the check!!\r<BR>\n" );
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document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com </SPAN>\n" );
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