Question

A photograph is 3 in. wide and 5 in. long. The photograph is enlarged to a width of 9 in. What then is the length of the enlarged photograph? What scale was used?

Answer 1

Step-by-step explanation:

I guess 9 in wide 45 in long

Answer 2

Answer:

15in.

Step-by-step explanation:

if the uniform scale is used i.e. both length and width are increased by same amount then 3 times scale magnitude  = 9

thus which gives us scale magnitude = 9/3 = 3

hence length is increased by  5*3=15 in.