Question

Mathematical model in real life

Answer 1

Well, one example would be how much space is in a cardboard box, to ship something to a friend or relative. 
We know the three measurements:
L = Length, W = Width, and H = Height.

And the formula for a volume of a cube is:
V = L*W*H

So say that:
L = 6 , W = 10 Feet, and H = 3 Feet.
By using the formula above we get the equation: V = 6*10*3
And that equals: 180 Feet.
So the volume of the box, or the space you have to send something is 180 square feet. 

Does this help?

The link I used for some of this info, which has other useful math models is: https://www.mathsisfun.com/algebra/mathematical-models.html