The rule of ________ can be used to calculate the number of years that it takes for the level of a variable to ________.

Question

Quizplus · Accepted Answer

The rule of 70 states that if a variable's annual growth rate is x%, it will take approximately 70/x years for the variable to double. Therefore, if the annual growth rate is 3.5%, it will approximately take 70/3.5 = 20 years for the level of the variable to double.

The Rule of ________ Can Be Used to Calculate the Number