High School

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A company offers blankets in two sizes: twin and double.

- The twin blanket is 24 inches longer than it is wide.
- The double blanket has the same length as the twin blanket, but it is 14 inches wider.
- The area of the twin blanket is 1,260 square inches less than the area of the double blanket.

Part A: Write an equation that can be used to determine the area of the double blanket. Define all variables used.

Answer :

The equation that can be used to determine the area of the double blanket is:

D = [tex]W^2 + 24W + 1,260[/tex]

Variable we are using here are as follows

W: Width of twin blanket (inches), L: Length of both blankets (inches), D: Area of double blanket (square inches)

We are given information about the sizes and areas of two blankets: the twin and the double. We need to find an equation to determine the area of the double blanket.

Identifying variables: We need to define variables to represent the dimensions of the blankets. Let:

W: Width of the twin blanket (in inches)

L: Length of the twin blanket (in inches) (same for both blankets)

D: Area of the double blanket (in square inches)

Relating variables: We know that the twin blanket is 24 inches longer than it is wide, so:

L = W + 24

Area of the twin blanket: The area of a rectangle is calculated by multiplying its length and width. So, the area of the twin blanket (T) is:

T = W × L = W × (W + 24)

Difference in area: We are also given that the area of the twin blanket is 1,260 square inches less than the area of the double blanket. This can be expressed as:

D - T = 1,260

Substituting expressions: We can substitute the expression for the twin blanket area (T) into the equation for the difference in area:

D - (W × (W + 24)) = 1,260

Simplifying and rearranging: Expanding the parentheses and rearranging the equation to isolate D, we get:

D = [tex]W^2 + 24W + 1,260[/tex]

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Rewritten by : Barada