Only one variable at a time . after one time has passed you can use more ..
Dependent variables
As many as are necessary, as few as possible.
dependent variable
stop figure it out in your own retards
In scientific investigations, three key types of variables are independent variables, dependent variables, and controlled variables. The independent variable is the factor that is manipulated or changed by the researcher to observe its effect. The dependent variable is the outcome or response that is measured to assess the impact of the independent variable. Controlled variables are those that are kept constant throughout the experiment to ensure that any observed changes can be attributed solely to the independent variable.
Dependent variables
As many as are necessary, as few as possible.
Independent Variables, Dependent Variables and Extraneous Variables.
one
dependent variable
There can only be one independent and one dependent variable. All other variables should be classed as control variables and must be kept constant to achieve a fair test.
time or length could be two different variables depending in what the investigation was based on
A static variable is one which is not stored on the stack but in the memory of the program. Static variables can be changed.
a changed variable is something that you have changed
variables
Variables are the different thing in the experiment. Ex.-Problem-Which ball rolls fastest? Hypothesis-The Softball will roll fastest. Investigation-Roll the balls at the same time and time them with a stopwatch. Conclusion-Basketball rolled the fastest. Variables-The balls.
stop figure it out in your own retards