document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1016810>Question 1016810</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sharee has had an operation and needs to build up her strength by walking. She slowly increases the time for which she walks.<BR>\n" );
document.write( "She wants to increase the time for which she walks to 160 minutes each day. The first week she goes for a 10-minute walk each day.<BR>\n" );
document.write( "Each Monday she doubles the time for which she walks each day.<BR>\n" );
document.write( "The time for which she walks each day in week n can be modelled by the equation<BR>\n" );
document.write( "T = 10 × 2n – 1<BR>\n" );
document.write( "How many weeks will it take her to reach her goal of walking for 160 minutes a day?\r<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 #633257 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=633257\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The time (in minutes for which Sharee walks each day in week <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n ALIGN=MIDDLE  ALT=\"n\"   DISABLED_style= \"max-width:90%; height:auto;\" > can be modeled by the equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+10+%2A+2%5E%28%28n-1%29%29 ALIGN=MIDDLE  ALT=\"T+=+10+%2A+2%5E%28%28n-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "We want to find the value of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n ALIGN=MIDDLE  ALT=\"n\"   DISABLED_style= \"max-width:90%; height:auto;\" > that makes <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T=160 ALIGN=MIDDLE  ALT=\"T=160\"   DISABLED_style= \"max-width:90%; height:auto;\" > , so our equation is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=160=+10+%2A+2%5E%28%28n-1%29%29 ALIGN=MIDDLE  ALT=\"160=+10+%2A+2%5E%28%28n-1%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=160%2F10=+10+%2A+2%5E%28%28n-1%29%29%2F10 ALIGN=MIDDLE  ALT=\"160%2F10=+10+%2A+2%5E%28%28n-1%29%29%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16=2%5E%28%28n-1%29%29 ALIGN=MIDDLE  ALT=\"16=2%5E%28%28n-1%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=2%5E4=2%5E%28%28n-1%29%29 ALIGN=MIDDLE  ALT=\"2%5E4=2%5E%28%28n-1%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=4=n-1 ALIGN=MIDDLE  ALT=\"4=n-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2B1=n ALIGN=MIDDLE  ALT=\"4%2B1=n\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28n=5%29 ALIGN=MIDDLE  ALT=\"highlight%28n=5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );