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Answer:
The Pacific plate travels approximately 107 km in a million year.
Explanation:
Modern Spreading Rate (R) = distance the seafloor moved in km (d) / age in million years (t)
R = d/t
To calculate it in millimeters per year we need to convert it:
1 km = 1000 m
1 m = 100 cm
1km = 100,000 cm
We know by the theory that the Pacific plates might be moving approximately between 10.6 - 10.75 cm/year. So, we might say that it moves 10.7 cm/year. So,
The Pacific plate moves 10.7 cm in one year
1 year-------------------------------- 10.7 cm
1,000,000 years ----------------- X = 10700000 cm
100,000 cm -------------- 1 km
10700000 cm -----------X = 107 km.
The Pacific plate moves approximately 107 km/my.