Question

As the seafloor of the Atlantic Ocean spreads, the African Plate moves eastward. Over the last 100 million years, the plate has moved approximately 2,100 kilometers. How many centimeters per year does it move eastward?

Answer 1

The plate moves a distance of 2,100 kilometers in 100 million years. The question requires units of centimeters. Convert the distance using 1 km = 100,000 cm:

To find speed, divide distance by time. The time it takes the plate to move 210,000,000 centimeters is 100 million years:

So, the African plate moves by approximately 2.1 centimeters per year.

Step-by-step explanation:

Answer 2

the answer would be 2.1 centimeters per year

1m = 100 cm
1km = 1,000 m
1,000 m = 100,000,000 cm
2.1 x 100,000,000 = 210,000,000

210,000,000/100,000,000 = 2.1 cm

hope this helps!!