Math Problem Statement

Aisha wants to make two quilts, each with the same area. The first quilt will be square with sides s feet long. The second quilt will be a rectangle with a width that is half the length of a side of the square quilt and a length that is 6 feet longer than a side length of the square quilt.

Which quadratic equation can be used to find s, the side length of the square quilt?

s2 = (s + 6) s2 = (s)(s + 6) s2 = (6s) s2 = (s)(6s)

Solution

Let's break down the problem:

Step 1: Area of the Square Quilt

The area of the square quilt is given by: Area of square=s2\text{Area of square} = s^2 where ss is the side length of the square quilt.

Step 2: Area of the Rectangular Quilt

The rectangular quilt has:

  • Width = half the length of a side of the square quilt, i.e., s2\frac{s}{2},
  • Length = 6 feet longer than the side of the square quilt, i.e., s+6s + 6.

So, the area of the rectangular quilt is: Area of rectangle=Width×Length=(s2)(s+6)\text{Area of rectangle} = \text{Width} \times \text{Length} = \left( \frac{s}{2} \right)(s + 6)

Step 3: Setting the Areas Equal

Since the two quilts have the same area, we set the areas equal: s2=(s2)(s+6)s^2 = \left( \frac{s}{2} \right)(s + 6)

Step 4: Simplifying the Equation

We can now simplify the equation: s2=s(s+6)2s^2 = \frac{s(s + 6)}{2} Multiply both sides by 2 to eliminate the fraction: 2s2=s(s+6)2s^2 = s(s + 6) Distribute the ss on the right side: 2s2=s2+6s2s^2 = s^2 + 6s

Step 5: Forming the Quadratic Equation

Subtract s2+6ss^2 + 6s from both sides: 2s2s26s=02s^2 - s^2 - 6s = 0 Simplify: s26s=0s^2 - 6s = 0

This is the quadratic equation that can be used to find ss.

Conclusion:

The correct equation is not one of the provided options directly, but the equation we derived is: s26s=0s^2 - 6s = 0

Do you need more details or have any questions?

Here are 5 related questions:

  1. How can we solve s26s=0s^2 - 6s = 0 to find the value of ss?
  2. How do you solve a quadratic equation using factoring?
  3. What are the steps to check if the solutions to a quadratic equation are valid for a given problem?
  4. What other forms can quadratic equations take?
  5. How do different quadratic equations relate to geometrical shapes like squares and rectangles?

Tip: Always make sure the units (such as feet or meters) are consistent throughout a geometry problem to avoid errors.

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Math Problem Analysis

Mathematical Concepts

Geometry
Quadratic Equations
Algebra

Formulas

Area of square = s^2
Area of rectangle = (s/2)(s + 6)
Quadratic equation: ax^2 + bx + c = 0

Theorems

Equal Area Theorem for Geometric Shapes
Quadratic Formula

Suitable Grade Level

Grades 9-10