A photograph has been enlarged to three times its previous size. By what percentage has the size of the photograph increased?
if all dimensions are 3x, the area is increased by 9.
To find the percentage increase in the size of a photograph that has been enlarged, you can use the following formula:
Percentage Increase = (New Size - Original Size) / Original Size * 100
In this case, the photograph has been enlarged to three times its previous size. Let's assume the original size is X. The new size would be 3X.
Percentage Increase = (3X - X) / X * 100
= 2X / X * 100
= 2 * 100
= 200%
Therefore, the size of the photograph has increased by 200%.