To solve this problem you must start by identifying and manipulating your area formula for a rectangle.
The area formula for a rectangle is Area = length (l) x width (w)
So, with this information you can isolate what you are looking for in the formula by manipulating it.
To do this, divide both sides by l so that your equating looks like this:
A/l = w
Next, plug in the values given to you in your problem.
l- 93 yards
A- 7719
So, rewrite your formula with these values to make an equation.
This should look like:
7719/93 = w
To find the width, w, divide.
7719/93 = 83
So the width of the rectangular field is 83 yards.
To check your answer, multiply the length by the width to make sure your area matches up with the given area in the problem.
83 x 93 = 7719
So this is correct because the areas match.
I hope this helps! :)