Question

Give an example of a formula. State what real-life quantity each variable represents.

Short answer

The formula A = l × w can be used to calculate the area of a rectangular space like a room, where A = Area, l = length of the room, and w = width of the room.

Step-by-step solution

Identify a suitable formula

Choose a practical formula. For this exercise, let's consider the formula for calculating the area of a rectangle: Area = Length × Width.

Define the variables

In this formula, 'Area' is the size of the surface of the rectangle, 'Length' is one of the sides of the rectangle and 'Width' is the side perpendicular to the length.

Present real-life instance

A real-life scenario can be in a situation where one needs to know the area of a room in order to buy enough carpet. Here, the 'length' and 'width' would represent the measurements of the room, and the 'area' would represent the total amount of carpet needed.