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shataviasumpter78
29.06.2019 •
Mathematics
Apattern drawn on a piece of paper has dimensions of 2 1/2 feet tall by 1 1/3 feet wide. the pattern is to be duplicated by people standing on a football field. if the scale factor of the pattern is 80, what is the area, in square feet, covered by the pattern on the football field?
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Ответ:
21,333 1/3 ft²
Step-by-step explanation:The area of the rectangle on paper is the product of its length and width:
... (2 1/2 ft) × (1 1/3 ft) = (5/2×4/3) ft² = 10/3 ft²
The dimensions of the rectangle on the field are 80 times those on paper, so the area will be ...
... (80 × 2 1/2 ft) × (80 × 1 1/3 ft) = 80² × 10/3 ft² = 64000/3 ft²
... = 21,333 1/3 ft²
Ответ: