Question

2. The area A of a rectangle is represented by the formula A = Lw, where Lis the length and wis the width. The length of the rectangle is 5. Write anequation that makes it easy to find the width of the rectangle if we knowthe area and the length.

Answer 1

`w=(A)/(5)`

1) Considering that the Area of a rectangle is given as:

`A=lw`

2) We can then write the following equation plugging into that the length= 5.

Say the area is "A", then we can find the width this way:

`\begin{gathered} A=5ww \\ 5w=A \\ (5w)/(5)=(A)/(5) \\ w=(A)/(5) \end{gathered}`

Note that we rewrote that to solve it for w (width).

All we need is to plug into the A the quantity of the area of this rectangle

Thus, the answer is w=A/5