Question

Malaya is making a collage of her birthday party photos and she wants to add an 8 x 10 inch. photo. Since there is not enough space left on the collage, she must trim the photo. If the scale factor from the original to the trimmed photo is 5:4, the new dimensions of the photo are ______.

Answer 1

Answer: 6.4 x 8 in.

Explanation:

6.4 x 8 in.

Answer 2

The answer is 6.4 x 8 in.

The scale 5 : 4 means that the old photo is 5 and the new photo is 4.
Now, let's find the new dimensions using the proportion for each side separately.

5 : 4 = 8 : x
x = 4 * 8 : 5
x = 6.4 in
_____
5 : 4 = 10 : y
y = 4 * 10 : 5
y = 8 in