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Y_Kistochka [10]
3 years ago
6

Helpppppppppp.......

Mathematics
2 answers:
ruslelena [56]3 years ago
5 0

Answer:

<em>36 centimeters in the poster</em>

Step-by-step explanation:

Let us plan out our steps, and solve for each:

<em>1. Given the information, let us create a proportionality as such:</em>

      3       =           1      ⇒   x - <em>centimeters in the poster</em>

      x                    12

<em>2. Now let us cross multiply, and solve through simple algebra for x:</em>

3 * 12 = x,

x = <em>36 centimeters in the poster</em>

Andrew [12]3 years ago
4 0

Answer:

36cm

Step-by-step explanation:

The scale is 3 to 1, so the poster size is 3 times larger than the actual thing.

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