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8 January, 21:29

A blueprint for a house has a scale of 1: 40. A wall in the blueprint is 3 in. What is the length of the actual wall?

10 ft.

1,440 ft.

10 in.

120 ft.

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Answers (1)
  1. 8 January, 21:32
    0
    The length is 120 feet. Setting up a proportion, you get 1/40=3/x. Solving for x, you get 120.
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