Formula
A formula consists of constants and variables.
In a formula the variables are interrelated. A formula is an equation that establishes a relationship among the variables involved in it. The plural form of formula is formulae.
Framing a formula:
Expressing a given statement in the form of an equation by using variables and mathematical symbols is called framing a formula.
Subject of a formula:
The subject of a formula is a variable that is expressed in terms of the other variables.
In other words, in a formula, the variable standing alone on one side of the equality sign is called the subject of the formula. The subject of a formula always lies on left hand side of the equality sign. The coefficient of the subject is always one. The subject of a formula does not link with any other quantities.
Changing the subject of a formula:
Any one variable of a formula can be made the subject by transferring the variables.
Evaluation of the subject of a formula (substitution method):
Finding the value of the subject by substituting the values of the other variables is called the evaluation of the subject of a formula.
Steps to evaluate the subject of a formula:
Make the required variable the subject.
Substitute the values of the other variables in the formula.
Simplify the formula.
formula is estabilshing the relation among varabiles and constant involve in it
i think so.....
nice question its easy so try to do it your self, i got the answer but you can do it your self easily
Sol:
Let the income of Ramesh be Rs x.
Part of the income given to son = x/3
Part of the income given to daughter =...
d=15
Sol:
Let the breadth of the rectanle be 'x' cm
Length of the rectangle = (x + 20) cm
Perimeter of the rectagle...