document.write( "Question 294449: the length of a rectangle is 1 ft less than 3 times the width. the area of the rectangle is 310 ft. what are the dimensions of the rectangle. When i did the question i got w = 77.75 but when substituted in the equations that didn't make sense the equations i used were L*W=310 and 3W-1=L \n" ); document.write( "
Algebra.Com's Answer #212303 by richwmiller(17219) You can put this solution on YOUR website! l=-1+3w \n" ); document.write( "l=3w-1 \n" ); document.write( "l*w=310 \n" ); document.write( "(3w-1)*w=310 \n" ); document.write( "3w^2-w-310=0 \n" ); document.write( "w= 31/3 \n" ); document.write( "w= 10 1/3 \n" ); document.write( "l=31/3*3-1 \n" ); document.write( "l=30 \n" ); document.write( "30*31/3=10*31=310\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |