zinneerah6 zinneerah6
  • 25-02-2020
  • Mathematics
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a architect uses a scale drawing with a scale factor of 1 cm:20 feet. if a actually building is 120 feet tall how many centimeters would it e

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fatmaq
fatmaq fatmaq
  • 25-02-2020
The answer is 6

Explanation:
1 cm : 20 feet
y cm : 120 feet
(We will use cross multiplication)
20y = 120*1
20y/ 20 = 120/20. (left-side: the 20’s will be cancelled)
y= 120/20
y= 6
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