Dependent and independent variables. ... The dependent variables represent the output or outcome whose variation is being studied. The independent variables, also known in a statistical context as regressors, represent inputs or causes, that is, potential reasons for variation.
An independent variable is a variable that is manipulated to determine the value of a dependent variable s. The dependent variable is what is being measured in an experiment or evaluated in a mathematical equation and the independent variables are the inputs to that measurement.
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Answer:
The decimal is not a rational number.
REASON:
A decimal can be a rational number if it fulfills any of the two conditions.
It must be Terminating. This means that the decimal should have finite number of digits.
If it is non-terminating decimal it should be Recurring. This means the decimal should repeat itself after some specific digits.
let the number is 10x + 3.
then sum of its digits = x + 3.
from given condition, we have
x+3 = (1/7)* (10x + 3)
=> 7x + 21 = 10x + 3
=> 3x = 18
=> x = 6
therefore the number is 63.