A 7 by 5 photo was enlarged. The length and width were enlarged 125%. Find the perimeter of the photo.
Enlarge length 125%: 7 * 1.25 = 8.75
Enlarge width 125%: 5 * 1.25 = 6.25
Perimeter of the enlarged photo is 2l + 2w, so we have:
P = 2(8.75) + 2(6.25)
P = 17.5 + 12.5
P = 30
Enlarge length 125%: 7 * 1.25 = 8.75
Enlarge width 125%: 5 * 1.25 = 6.25
Perimeter of the enlarged photo is 2l + 2w, so we have:
P = 2(8.75) + 2(6.25)
P = 17.5 + 12.5
P = 30