Locations of hot spots remain fixed for a long time. As

plates move across such hot spots, they form chains of volcanoes. The
Hawaiian Islands are an example of such an island chain formed over a
hot spot. Volcanoes on the Island of Hawaii are still active. Moving
northwest, the volcanoes are extinct. The age of the extinct volcano,
located 4,000 km away from the Hawaiian Islands, is 40 million years old.
What is the rate of movement of the Pacific Plate?

Would I divide 4000km/40million? would that give me the rate of movement?

Yes.

To calculate the rate of movement of the Pacific Plate, you would divide the distance the extinct volcano is located from the Hawaiian Islands by the age of the extinct volcano. So, in this case, you would divide 4,000 km by 40 million years.

However, it's important to note that the rate of movement of tectonic plates, such as the Pacific Plate, is typically measured in centimeters per year. So, it would be necessary to convert the distance from kilometers to centimeters and the age from years to millions of years.

To convert kilometers to centimeters, you would multiply the distance by 100,000 (since there are 100,000 centimeters in a kilometer). Thus, 4,000 km would be 4,000,000 cm.

To convert years to millions of years, you would divide the age by 1 million. Thus, 40 million years would be 40/1 million.

Now, you can divide the converted distance (4,000,000 cm) by the converted age (40/1 million) to calculate the rate of movement:

Rate of movement = 4,000,000 cm / (40/1 million)

Simplifying this expression gives:

Rate of movement = 4,000,000 * (1 million / 40)

Now, let's calculate the rate of movement:

Rate of movement = 4,000,000 * 25,000

Rate of movement = 100,000,000,000 cm/year

Therefore, the rate of movement of the Pacific Plate would be approximately 100 billion centimeters per year.