Amir wants to scale up a photo to create a poster for his room. the original picture is 6 inches in width and 4 inches in height. what will be the height of the poster if its width is 30 inches? 24 inches 28 inches 20 inches 18 inches

Since the scaled up photo/poster has to be proportional to the original, we can come up with the equation:

Now we can solve for x, which is the height of the scaled up poster. We cross multiply the fractions to get 6x=120. Then, we divide 6 on both sides to get x=20.

So, the height of the scaled up photo/poster must be 20 inches.

Hope this helps! Have a great day!

sorry not knowing about that