Kenneth S. answered • 10/30/17

Tutor

4.8
(62)
Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018

**3 cm per year would be 3 m per 100 years.**

**Then 100 km is 10**

^{5}m, so use a proportion:**3 m / 100 yrs = 10**

^{5}m / t years.**I let you solve for t in this proportion.**