Given:
The spinner sections = 15
The probability of spinning a red = 2/5
Find-:
How many sections are blue
Explanation-:
The total probability of spinning is 1.
[tex]\text{ Probability of spinning red }+\text{ Probability of spinning blue}=1[/tex]The probability of spinning blue is:
[tex]\begin{gathered} =1-\frac{2}{5} \\ \\ =\frac{5-2}{5} \\ \\ =\frac{3}{5} \end{gathered}[/tex]The blue section is:
[tex]\begin{gathered} =\frac{3}{5}\times15 \\ \\ =3\times3 \\ \\ =9 \end{gathered}[/tex]The total 9 sections for blue.
