Question

a plate moves south at a rate of 2 cm/year. how many meters south from its original location will the plate be in 4,000 years?
○ 8,000 meters south
○ 4,000 meters south
○ 200 meters south
○ 80 meters south

Explanation:

Step1: Calculate total distance in cm

$\text{Total distance (cm)} = 2\ \text{cm/year} \times 4000\ \text{years} = 8000\ \text{cm}$

Step2: Convert cm to meters

$\text{Total distance (m)} = \frac{8000\ \text{cm}}{100\ \text{cm/m}} = 80\ \text{m}$

Answer:

D. 80 meters south