Question

$0.05n+0.10(n+8)=2.15$

Short answer

The value of$n=9$

Step-by-step solution

- The given information

$0.05n+0.10(n+8)=2.15$

Step 2

$$\begin{gathered} 0.05n+0.10(n+8)=2.15 \\ \Rightarrow 0.05n+0.10n+0.80=2.15 \\ \Rightarrow 0.15n=1.35 \\ \Rightarrow n=9 \end{gathered}$$