- Solve One-Step Equations North America is moving
about 1.25 cm per year away from a ridge in the
middle of the Atlantic Ocean. Using this rate, how
much farther apart will North America and the ridge
be in 200 million years?
Answer: (1.25 cm / yr) x 200 million years= 250 million centimeters North America will be 250 million centimeters further from the ridge in 200 million years