A 4in. by 5in. photo is enlarged by multiplying the length and width by 2. What is the new perimeter?
2 * 4 = 8
2 * 5 = 10
P = 2L + 2W
P = ?
To find the new perimeter of the enlarged photo, we need to first find the dimensions of the enlarged photo.
The original dimensions of the photo are 4 inches by 5 inches. To enlarge the photo, we multiply both the length and width by 2.
Length after enlargement = 4 inches x 2 = 8 inches
Width after enlargement = 5 inches x 2 = 10 inches
Now, we can calculate the new perimeter by adding the lengths of all sides of the enlarged photo.
Perimeter of the enlarged photo = 8 inches + 8 inches + 10 inches + 10 inches
Perimeter of the enlarged photo = 36 inches
Therefore, the new perimeter of the enlarged photo is 36 inches.