Question

How is an increase of 25% related to the diagram? explain please! :)

Answer 1

1) Since an increase of 25% represents an increase of 1/4 of the whole.

2) And we have 4/5, increasing 1/4 we'll write:

$\begin{gathered} \frac{4}{5}+\frac{1}{4}\times\frac{4}{5}= \\ \frac{4}{5}+\frac{1}{5}=\frac{5}{5}=1 \end{gathered}$

3) So representing in the diagram an increase of 25% would be:

x =4/5

x(1.25) =y

4/5(1.25) =1