document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=938886>Question 938886</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Because Stephanie wanted to win the Berryville bicycle race she trained hard for a week including the weekend. Each day she rode 3 miles more than the previous day. If she rode a total of 126 miles, then how far did she ride the day before the race? Include an algebraic equation to support your reasoning.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #572037 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=572037\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Because Stephanie wanted to win the Berryville bicycle race she trained hard for a week including the weekend. Each day she rode 3 miles more than the previous day. If she rode a total of 126 miles, then how far did she ride the day before the race? Include an algebraic equation to support your reasoning. <BR>\n" );
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document.write( "Arithmetic sequence with a(1) = 3 and S(7) = 126<BR>\n" );
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document.write( "S(7) = (7/2)(3+a(n)) = 126<BR>\n" );
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document.write( "(1/2)(3+a(n)) = 18<BR>\n" );
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document.write( "3 + a(n) = 36<BR>\n" );
document.write( "a(n) = 33 (distance she rode on the 7th day)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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