Question

Square meters of ceiling Number of tiles 10.75 1 10 100.75 100 9.3 X a en using variable "a".

Answer 1

We have to find the relation between the area of the ceiling and the number of tiles.

We know that there is a proportional relationship between them, so we need only one point to know the relationship:

$x=k\cdot a$

When x=10.7, a=1, so we can replace them in the equation in order to find the constant k:

$\begin{gathered} 10.7=k\cdot1 \\ k=\frac{10.7}{1}=10.7 \end{gathered}$

So we can write the relationship as x = 10.7 * a.