document.write( "Question 999334: The area on a wall covered by a rectangular poster is 320 square inches. The length of the poster is 1.25 times longer than the width of the poster. What are the dimensions of the poster? \n" ); document.write( "
Algebra.Com's Answer #617011 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! A=L*W \n" ); document.write( "but L=1.25 W \n" ); document.write( "A=1.25 W^2=320 \n" ); document.write( "1.25W^2-320=0 \n" ); document.write( "W^2-256=0, dividing everything by 1.25 \n" ); document.write( "W= +/-16, but only +16 makes sense \n" ); document.write( "width is 16 in \n" ); document.write( "Length is 20 in \n" ); document.write( "The area is 320 in^2 \n" ); document.write( " |