Hello!
We have been given enough information to solve this question!
We know that the length of the rectangle is 2.5, and we also know how to find the area:
A = l × w
But we don't need the area, we need to find the width of the rectangle! You see, we had to multiply the length by the width to find the area.
Now, to find the width, we must flip the problem around and use the opposite of multiplication, which is division.
W = a ÷ l
W = 10 ÷ 2.5
W = 4
Therefore, the width of the rectangle is 4.
