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An electrician plans to install solar panels on a rectangular section of roof with an area of AA square meters. This width of this section of roof is WW meters across. What is the length of this section of roof?

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Q. An electrician plans to install solar panels on a rectangular section of roof with an area of AA square meters. This width of this section of roof is WW meters across. What is the length of this section of roof?
  1. Define variables: Step 11: Define the variables for the area (AA) and width (WW) of the rectangular section of the roof. Let's say the area is 12001200 square feet and the width is 3030 feet.
  2. Use formula: Step 22: Use the formula for the area of a rectangle, A=W×LA = W \times L, where LL is the length. We need to find LL.
  3. Rearrange formula: Step 33: Rearrange the formula to solve for LL. L=AWL = \frac{A}{W}.
  4. Substitute values: Step 44: Substitute the values into the formula. L=120030L = \frac{1200}{30}.
  5. Calculate length: Step 55: Calculate the length. L=40L = 40 feet.

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