Final answer:
To find the actual size of the beetle, divide the magnified image size of 1.75 cm by the magnification ratio of 5. This results in an actual size of 0.35 cm.
Step-by-step explanation:
To determine the actual size of the beetle, we can use the information that the image of the beetle is 1.75 cm and that this magnified image is five times the actual size of the beetle.
To find the beetle's actual size, we can set up a simple proportion based on the magnification ratio.
The proportion will be magnified size/actual size = magnification ratio.
Plugging in the values we have, we get 1.75 cm/actual size = 5/1.
To find the actual size, we solve for the unknown by dividing the magnified size by the magnification ratio: actual size = 1.75 cm / 5.
The result is 0.35 cm, which is the actual size of the beetle.