document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=297630>Question 297630</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Robert builds a wall made from bricks. Each layer has exactly three more bricks than the layer immediately above it. If the wall has five layers, how many bricks will the top layer have if the total number of bricks in the wall is 80? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #214289 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=214289\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Robert builds a wall made from bricks. Each layer has exactly three more bricks than the layer immediately above it. If the wall has five layers, how many bricks will the top layer have if the total number of bricks in the wall is 80?<BR>\n" );
document.write( "--<BR>\n" );
document.write( "1st layer: x<BR>\n" );
document.write( "2nd layer: x+3<BR>\n" );
document.write( "3rd layer: x+6<BR>\n" );
document.write( "4th layer: x+9<BR>\n" );
document.write( "5th layer: x+12<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "sum = 80<BR>\n" );
document.write( "5x+30 = 80<BR>\n" );
document.write( "5x = 50<BR>\n" );
document.write( "x = 10 (# in top layer)<BR>\n" );
document.write( "============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );