It is given in the question that, The area of ava rectangular back yard is 325 square yards and the length of the yards is 13 yards.
Let the width be w yard .
And area of rectangle is the product of length and width .
So we have
[tex] 325 = 13 w [/tex]
Dividing both sides by w
[tex] \frac{325}{13} = \frac{13w}{13} => w = 25 yards . [/tex]
So the width is 25 yards .
