Math Problem Statement
The perimeter of a rectangle is 320 inches. Find the length and width if the length is an odd integer and the width is 5 times the next consecutive odd integer.
Solution
We are given that the perimeter of a rectangle is 320 inches. The perimeter of a rectangle is calculated as:
where is the length and is the width. We are also given the following conditions:
- The length is an odd integer.
- The width is 5 times the next consecutive odd integer after the length.
Step 1: Express the width in terms of the length
Let the length , where is an odd integer. The next consecutive odd integer is . Therefore, the width is:
Step 2: Substitute into the perimeter formula
Substitute and into the perimeter formula:
Step 3: Simplify the equation
Simplify the equation inside the parentheses:
Step 4: Solve for
Now, solve for :
So, the length .
Step 5: Find the width
Now, substitute back into the expression for the width:
Final Answer:
The length of the rectangle is 25 inches, and the width is 135 inches.
Would you like more details or have any questions?
Here are 5 related questions:
- How do we confirm if the perimeter condition is satisfied?
- Can the length and width be fractional values in this scenario?
- What happens if the perimeter was increased to 500 inches with the same conditions?
- How would the solution change if the width were 4 times the next consecutive even integer?
- Can you express the relationship between the length and width as a function of the perimeter?
Tip: In problems involving integer constraints, it helps to work systematically with consecutive integers or functions of those integers.
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Math Problem Analysis
Mathematical Concepts
Algebra
Geometry
Linear Equations
Odd Integers
Formulas
Perimeter of a rectangle: P = 2(L + W)
Theorems
-
Suitable Grade Level
Grades 6-8
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