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The area of the surface of a workbook is 8080 square inches. It is 1010 inches tall. How wide is it?\newline​____\_\_\_\_ inches

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Full solution

Q. The area of the surface of a workbook is 8080 square inches. It is 1010 inches tall. How wide is it?\newline​____\_\_\_\_ inches
  1. Define Workbook Dimensions: Let ww be the width of the workbook. The area of a rectangle is given by the formula A=length×widthA = \text{length} \times \text{width}. Since the workbook is rectangular and its height is given as the length, we can use A=height×widthA = \text{height} \times \text{width}.
  2. Calculate Area: Area of the workbook: 8080 square inches\newlineHeight of the workbook: 1010 inches\newlineSubstitute 8080 for AA and 1010 for the height in A=height×widthA = \text{height} \times \text{width}.\newline80=10×w80 = 10 \times w
  3. Solve for Width: Solve for ww.80=10w80 = 10wDivide both sides by 1010 to isolate ww.8010=10w10\frac{80}{10} = \frac{10w}{10}8=w8 = wWidth of the workbook: 88 inches

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