Question

Helpppppppppp.......

Answer 1

36cm

Explanation:

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

Answer 2

36 centimeters in the poster

Explanation:

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

1. Given the information, let us create a proportionality as such:

3 = 1 ⇒ x - centimeters in the poster

x 12

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

3 * 12 = x,

x = 36 centimeters in the poster