Question

what is the missing length? area = 15 in² u = \boxed{} inches

Explanation:

Step1: Recall rectangle area formula

The area of a rectangle is $A = l \times w$, where $A$ is area, $l$ is length, $w$ is width.

Step2: Rearrange to solve for $u$

Isolate $u$ using $u = \frac{A}{w}$

Step3: Substitute given values

Substitute $A=15$ and $w=5$:
$u = \frac{15}{5}$

Step4: Calculate the value

$u = 3$

Answer:

3 inches