Question

A plate moves 200 m in 10,000 years. What is its rate in cm/year?

A)0.02 cm/year
B) 2 cm/year
C) 10 cm/year
D) 100 cm/year

Answer 1

Answer:

B. 2cm/year

Explanation:

To convert 200m to cm, we multiply by 100.

This will be 200*100= 20,000cm

Time is given as 10,000years

Rate in this case is the ratio of distance to time

Rate= distance/time

Rate= 20,000cm/10,000years

Rate=2cm/year

Answer 2

Answer:

2 cm

Explanation: