Question

A contractor currently has 20 construction workers working on a building. When the building is finished, it will have 20 stories. If he

increases the number of workers to 40, the building will be done twice as quickly. Which statement best describes the number of
construction workers in this situation?
A.
The number of construction workers is the independent variable.
B.
The number of construction workers is the constant variable.
c.
The number of construction workers is both an independent and a dependent variable.
D.
The number of construction workers is the dependent variable.

Answer 1

The number of construction workers is the independent variable.

Explanation:

The time it takes to finish the building depends on how many people work on it. So, the time it takes is the dependent variable, which depends on how many people work on it, which is the independent variable.