The number of sectors of the spinner needed to be shaded blue is 8
Firstly, we need to know the number of total sectors
We have this as 12 sectors
Now, for us to calculate the probability of a blue sector, we have to divide the number of blue sectors by the total number of sectors
Thus, we have;
[tex]\begin{gathered} \frac{b}{12}\text{ = }\frac{2}{3} \\ 3\times b\text{ = 12}\times2 \\ b\text{ = }\frac{24}{3} \\ b\text{ = 8} \end{gathered}[/tex]
The number of sectors of the spinner needed to be shaded blue is 8
