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The area of a rectangle is 105 square inches, and the length of one side is 7 inches. What is the length of the perimeter?

A. 22 inches
B. 27 inches
C. 35 inches
D. 44 inches
E. 49 inches

Answer :

To find the length of the perimeter of the rectangle, we need to follow these steps:

1. Identify the given information:
- The area of the rectangle is 105 square inches.
- The length of one side of the rectangle is 7 inches.

2. Calculate the width of the rectangle:
- We can use the formula for the area of a rectangle:
[tex]\[
\text{Area} = \text{Length} \times \text{Width}
\][/tex]
- Plug in the known values:
[tex]\[
105 = 7 \times \text{Width}
\][/tex]
- To find the width, divide both sides by 7:
[tex]\[
\text{Width} = \frac{105}{7} = 15 \text{ inches}
\][/tex]

3. Calculate the perimeter of the rectangle:
- Use the formula for the perimeter of a rectangle:
[tex]\[
\text{Perimeter} = 2 \times (\text{Length} + \text{Width})
\][/tex]
- Substitute the known values:
[tex]\[
\text{Perimeter} = 2 \times (7 + 15)
\][/tex]
- Simplify the expression:
[tex]\[
\text{Perimeter} = 2 \times 22 = 44 \text{ inches}
\][/tex]

So, the length of the perimeter of the rectangle is 44 inches.

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