Question 1048319
The area of the screen is 7 x 11=77
Let n be the width of the frames. Then:
(7-n)(11-n)=(2x77)/3
231-54n+3n²=154
3n²-54n+77=0
Using the quadratic formula; we get n=16.439 and 1.561. Throwing out the higher number, we get the width of the frame to be 1.561 inches. &#9786;&#9786;&#9786;&#9786;