document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=791934>Question 791934</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the average of 15 men in a boat is increased by 3 kg when one of the crew who weights 40kg, is replaced by someone else. the weight of the new man is </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #480052 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=480052\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the average of 15 men in a boat is increased by 3 kg when one of the crew who weights 40kg, is replaced by someone else.<BR>\n" );
document.write( " the weight of the new man is:<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let k = the average weight of the 1st 14 guys<BR>\n" );
document.write( "Let A = the original average of the 15 guys<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(A+3) = the average when one guy is replaced<BR>\n" );
document.write( "let x = the weight of the new guy.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Equation for the original crew<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2814k%2B40%29%2F15 ALIGN=MIDDLE  ALT=\"%2814k%2B40%29%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" > = A<BR>\n" );
document.write( "14k + 40 = 15A<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Equation when one guy is replaced<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2814k%2Bx%29%2F15 ALIGN=MIDDLE  ALT=\"%2814k%2Bx%29%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" > = A + 3<BR>\n" );
document.write( "14k + x = 15(A+3)<BR>\n" );
document.write( "14k + x = 15A + 45<BR>\n" );
document.write( "14k + x - 45 = 15A<BR>\n" );
document.write( ":<BR>\n" );
document.write( "15A = 15A so we can write it<BR>\n" );
document.write( "14k + x - 45 = 14k + 40<BR>\n" );
document.write( "subtract 14k from both side<BR>\n" );
document.write( "x - 45 = 40<BR>\n" );
document.write( "x = 40 + 45<BR>\n" );
document.write( "x = 85 kg, weight of the new guy, a big dude! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );