Question 1052453
Let w be the width of the strip. Then your new length would be 40-2w, and your new width would be 25-2w. So:
(40-2w)(25-2w)=844
1000-130w+4w²=844
4w²-130w+156=0
Using the quadratic formula, we get w=31.2520831887 or 1.24791681132.
Throwing out the larger result, we get the width of the strip to be approx. 1.25 yds. &#9786;&#9786;&#9786;&#9786;