Question

In the past 100 years, scientists measured the movement of the continents to be 190.5 centimeters. If the continents moved the same amount each year, how much did the continents move in one year?

Answer 1

The continents moved by 1.905 centimeters each year.

Explanation:

This question is solved by proportions, using a rule of three.

In the past 100 years, scientists measured the movement of the continents to be 190.5 centimeters. How much it moved in a year?

100 years - 190.5 centimeters.

1 year - x centimeters

`100x = 190.5`

`x = (190.5)/(100)`

`x = 1.905`

The continents moved by 1.905 centimeters each year.