Question

what is the missing length? area = 30.8 in² a = inches

Explanation:

Step1: Recall the formula for the area of a rectangle

The area formula for a rectangle is \( A = \text{length}\times\text{width}\). Here, \(A = 30.8\space in^{2}\), width \(w = 4.4\space in\), and length \(l=a\). So, \(A=a\times w\).

Step2: Solve for \(a\)

Rearrange the formula to \(a=\frac{A}{w}\). Substitute \(A = 30.8\) and \(w = 4.4\) into the formula: \(a=\frac{30.8}{4.4}\).
Calculate \(\frac{30.8}{4.4}=7\).

Answer:

\(7\)