Question

if an earthworm is 18mm long and is photographed and the picture is magnified 2.5x how long will it be in the picture?

Answer 1

Answer:

The earthworm will be 45 mm long in the picture

Explanation:

From the problem, we can take the original size of the earthworm to be 18mm.

Magnification  can be obtained using the formula:

magnification = observed size/ original size.

Recall, we are given that the magnification is 2.5.

Hence, can evaluate the size in the picture to be

2.5 X 18mm = 45mm