What does subject of the formula mean?

The subject of a formula is the variable that is being worked out. It can be recognised as the letter on its own on one side of the equals sign.

How do you make the subject of the formula in compound interest?

The future value compound interest formula is expressed as FV = PV (1 + r / n)n t. Here, PV = Present Value (Initial investment), r = rate of interest, n = number of times the amount is compounding, and t = time in years.

How do you change equations?

Rearranging equations

1. For example,
2. To rearrange the equation so that it is written as take each term and move to the other side of the equal sign using the opposite operation until you only have.
3. e.g. Rearrange to make the subject of the equation.
4. Take to the other side of the equal sign by adding to both sides.

How do you rearrange two variable equations?

So let’s review:

1. RULE #1: you can add, subtract, multiply and divide by anything, as long as you do the same thing to both sides of the equals sign.
2. RULE #2: to move or cancel a quantity or variable on one side of the equation, perform the “opposite” operation with it on both sides of the equation.

How do you make B the subject of a formula?

To make (b) the subject of the formula, (b) needs to be isolated. In the formula above, the letter (b) is multiplied by (h). The inverse of multiplying by (h) is dividing by (h), so divide both sides by (h) to isolate (b).

What does it mean to change the subject of the formula?

​All that changing the subject of the formula means is basically getting a letter on its own on one side of the equation. To begin, let’s take a relatively simple example. Make x the subject of the formula: 4y + 2 = x – 4. What this question basically means is get x on its own. At the moment on the right hand side we have x – 4.

How do you rearrange a formula to make the subject?

Rearrange the formula to make the subject of the formula. To make the subject of the formula means to rearrange the formula so it begins with . Answer this question by finding the letter in the formula. Isolate this letter by inversing any other items on this side of the equation. Next to the , there is also a .

What is the importance of formulae in real life?

Formulae are used in everyday life, from working out areas and volumes of shapes to converting units of measurement. Knowing how to use and rearrange formulae are very useful skills. The subject of a formula is the variable that is being worked out.