document.write( "Question 693982: the length of a rectangle is 3 times its width. if the width is diminished by 1 meter and the length is increased by 3 meters, the area of the rectangle that is formed is 72 square meters. find the dimensions of the original rectangle. \n" ); document.write( "
Algebra.Com's Answer #427679 by JBarnum(2146)![]() ![]() You can put this solution on YOUR website! L=Length W=Width A=Area \n" ); document.write( "L=3W \n" ); document.write( "so LW=A is really 4W=A or 3W(W)=A \n" ); document.write( "W-1 \n" ); document.write( "L+3=3W+3 \n" ); document.write( "A=72 for second rectangle \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "do the quadratic formula \n" ); document.write( "to get \n" ); document.write( "two possible answers are 5,-5 however there can not be negative lengths so possitive 5 is what W equals \n" ); document.write( "L=3W so L=15 and W=5 \n" ); document.write( "so A=75\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |