document.write( "Question 251838:  The height of a box is 7 inches. Its length is 6 inches more than its width. Find the length if the volume is 280 cubic inches.
\n" );
document.write( "a) 40 in. b) 7 in. c) 10 in. d) 4 in. e) 13 in. \n" );
document.write( "
| Algebra.Com's Answer #183538 by richwmiller(17219)     You can put this solution on YOUR website! v=H*W*L \n" ); document.write( "280=7*W*(6+W) \n" ); document.write( "280=42W+7W^2 \n" ); document.write( "40=6w+w^2 \n" ); document.write( "W^2+6W-40=0 \n" ); document.write( "(W-4)(W+10)=0 \n" ); document.write( "W=4 \n" ); document.write( "We can only use positive results \n" ); document.write( "L=6+W \n" ); document.write( "L=4+6=10 \n" ); document.write( " |