document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=88148>Question 88148</A>: <I><SPAN STYLE=\"word-break: break-all;\">  </SPAN>\n" );
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document.write( " a rectangular field is 4 times as long as it is wide . if the length is decreased by 10 in. and the width is increased by 2 in. the perimeter will be 80 in. find the dimensions of the original field <BR>\n" );
document.write( "  <BR>\n" );
document.write( "  Let the width of the field be = b =x in.<BR>\n" );
document.write( " the length of the field will be = l = 4x<BR>\n" );
document.write( " the new length of the field be  =L = 4x-10<BR>\n" );
document.write( " the new width  of the field be = B = x+2<BR>\n" );
document.write( " the perimeter of the field is = p = 80<BR>\n" );
document.write( "                    perimeter = 2(L+B)<BR>\n" );
document.write( "                            p = 2(L+B)<BR>\n" );
document.write( "                            80 = 2(4x-10+x+2)<BR>\n" );
document.write( "                            80 = 2(5x-8)<BR>\n" );
document.write( "                            80/2 = 5x-8<BR>\n" );
document.write( "                            40 = 5x-8<BR>\n" );
document.write( "                            5x = 40+8 = 48<BR>\n" );
document.write( "                             x = 48/5 = 9.6     4x = 4.(9.6) = 38.4<BR>\n" );
document.write( "      length of the original field = 9.6 in<BR>\n" );
document.write( "      width  of the original field = 38.4 in   </SPAN>\n" );
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